Home Properties of AlSi9Cu3 metal matrix micro and nano composites produced via stir casting
Article Open Access

Properties of AlSi9Cu3 metal matrix micro and nano composites produced via stir casting

  • Tennur Gülşen Ünal EMAIL logo and Ege Anıl Diler
Published/Copyright: August 13, 2018
Download Article (PDF)
Open Chemistry
From the journal Open Chemistry Volume 16 Issue 1

Abstract

The effects of micro and nano sized reinforcement particles on microstructure and mechanical properties of aluminium alloy-based metal matrix composites were investigated in this study. AlSi9Cu3 alloy was reinforced with micro and nano sized ceramic reinforcement particles at different weight fractions by using a stir casting method. The mechanical tests (hardness, three point bending) were performed to determine the mechanical properties of AlSi9Cu3 alloy-based microcomposites (AMMCs) and nanocomposites (AMMNCs). The experimental results have shown that the size and weight fraction of reinforcement particles have a strong influence on the microstructure and the mechanical properties of AlSi9Cu3 alloy-based microcomposites and nanocomposites. The relative densities of all AMMC and AMMNC samples are lower than unreinforced AlSi9Cu3 alloy due to porosity formation with the increase of weight fraction of reinforcement particles. As weight fraction increases, hardness values of AMMCs and AMMNCs increase. Maximum flexural strength can be obtained at 3.5wt.% for the AMMC sample with microsized Al2O3 particles and at 2wt.% for the AMMNC sample with nano-sized Al2O3 particles. After the weight fractions exceed these values, flexural strengths of both AMMCs and AMMNCs decrease due to clustering of Al2O3 particles.

Keywords: Metal matrix composites; Nanocomposites; Stir Casting; Microstructure; Mechanical Properties

1 Introduction

Ceramic reinforcements in the form of particle are prevalently used in metal, ceramic and polymer matrix composites [1, 2, 3]. Especially aluminum alloy-based metal matrix composite studies for automotive, aerospace and other industrial applications are quite popular since mechanical properties of aluminum alloys can be improved through the addition of micro and nano-sized ceramic reinforcement particles [4, 5, 6]. Ceramic reinforcements such as particulate boron carbide, alumina, silicon carbide, etc. in metal matrix composites (MMCs) and metal matrix nano composites (MMNCs) can be added into metal matrix by using various manufacturing methods [7, 8, 9].

The microstructure and mechanical properties of metal matrix composites are strongly influenced by microstructural factors such as distribution, size and weight fraction of micro and nano sized reinforcement particles. .Among these factors, the distribution of reinforcement particles determining the microstructure and mechanical properties of metal matrix composites is affected by the parameters due to material and production method. There are two major problems to be cautious of adding micro and nano-sized particles into the aluminum matrix during the stir casting process: wettability and distribution of particles; because these two parameters can cause detrimental effects on the mechanical properties of both MMCs and MMNCs if they are not taken care of during the process. The wettability is poorer for nano reinforcement particles due to larger surface area of nano-sized reinforcement particles [10, 11, 12]. Also, it is difficult to obtain uniform distribution of nano-sized reinforcement particles in a matrix in stir casting method [13, 14]. In literature, there are many studies that investigate the influence of micro and nano sized reinforcement particles on the mechanical properties of aluminium-based AMMCs at various sizes and weight fractions of ceramic-based reinforcement particles. In these studies, the parameters’ optimum values that indicate the best mechanical properties of the composites could be different from each other because of the fact that the chosen size and weight fraction of reinforcement particles were different from each other and the composites were not produced at the same production conditions (temperature, etc.). Therefore, it is difficult to compare the composites with micro and nano-sized particles each other. For this reason, this study has been conducted to investigate the effect of micro and nano sized reinforcement particles on the microstructure and the mechanical properties of aluminium-based AMMCs and AMMNCs reinforced with different weight fractions of micro and nano-sized Al2O3 particles by using stir casting method.

2 Materials and methods

2.1 Materials

Nano-sized (40 nm) and micro-sized (50 μm) Al2O3 reinforcement particles at various weight fractions were used to reinforce AlSi9Cu3 alloy. Figure 1 shows nano-sized Al2O3 reinforcement particles. The weight fractions and particle sizes of Al2O3 reinforcement particles are given in Table 1.

Figure 1 SEM image of nano-sized Al2O3 reinforcement particles.
Figure 1

SEM image of nano-sized Al2O3 reinforcement particles.

Table 1

Weight fractions and particle sizes of Al2O3 reinforcement particles in AMMC and AMMNC samples.

Sample NoAl2O3 (Weight fraction) (%)Al2O3 (Particle size)
1AlSi9Cu3 alloy (Unreinforced)
2140 nm
3240 nm
4340 nm
52.550 μm
63.550 μm
7550 μm
81050 μm

2.2 Production method

AMMC and AMMNC samples were reinforced with micro and nano-sized Al2O3 particles by using stir casting method. The AlSi9Cu3 alloy was heated up to melting temperature of 700°C. The nano-sized Al2O3 reinforcement particles were added to the melt at the weight fractions of 1, 2 and 3% while the micro-sized Al2O3 particles were added at the weight fractions of 2.5, 3.5, 5 and 10% under argon atmosphere. The stirring process was continued for 10 minutes at a speed of 300 rpm and then the mixture was poured to the mold to manufacture AMMC and AMMNC samples.

2.3 Experiments

Archimedes’ principle was used to measure the experimental densities of unreinforced AlSi9Cu3 alloy, AMMC and AMMNC samples. The relative density indicating the porosity level in the samples was calculated by proportioning the theoretical and experimental densities of the samples.

The hardness tests of the samples were performed using Brinell hardness tester with a 2.5 mm diameter ball indenter and 62.5 kgf load test.

Three-point bending test was carried out in order to determine the flexural strength of the composite samples. These samples were supported by the rollers and tested at a cross head speed of 0.25 mm/min.

Ethical approval: The conducted research is not related to either human or animals use.

3 Results and discussion

The microstructure of AMMNC sample reinforced with 1 wt.% Al2O3 nano-sized particles is seen in Figure 2(a). Micro-sized Al2O3 particles in the microstructure of AMMC sample having 3.5 wt.% reinforcement particles are shown in Figure 2(b) by the dashed white arrows. Both nano-sized and micro-sized Al2O3 particles are uniformly distributed in the microstructure of AMMNC with 1 wt.% and AMMC with 3.5 wt.%. Uniform particle distribution can be obtained at higher weight fraction for the composites having micro-sized Al2O3 particles when compared to the composites with nano-sized Al2O3 particles.

Figure 2 SEM images of the microstructures of (a) AMMNC sample with 1wt.% nano-sized Al2O3 particles and (b) AMMC sample having 3.5wt.% micro-sized Al2O3 particles.
Figure 2

SEM images of the microstructures of (a) AMMNC sample with 1wt.% nano-sized Al2O3 particles and (b) AMMC sample having 3.5wt.% micro-sized Al2O3 particles.

The value of relative density of a MMC indicates porosity level in the microstructure. The relative densities of all composite samples are lower than that of AlSi9Cu3 alloy, and as seen in Figure 3, the relative density decreases with the increasing of weight fractions of both nano and micro-sized Al2O3 particles. This can be attributed to the problems of wettability and clustering of reinforcement particles [10]. Moreover, the relative densities of the AMMNC samples having nano-sized Al2O3 particles are less than those of the AMMC samples with micro-sized Al2O3 particles for the weight fractions close to each other.

Figure 3 Relative densities of unreinforced AlSi9Cu3 alloy and the composite samples with micro and nano-sized Al2O3 particles.
Figure 3

Relative densities of unreinforced AlSi9Cu3 alloy and the composite samples with micro and nano-sized Al2O3 particles.

Hardness values of unreinforced AlSi9Cu3 alloy, AMMCs and AMMNCs are given in Figure 4. The hardness values for both AMMCs and AMMNCs reinforced with Al2O3 particles are higher than unreinforced AlSi9Cu3 alloy. Hardness values of AMMCs and AMMNCs increase as the weight fraction of Al2O3 reinforcement particles increases. Hardness of AMMNC having nano-sized Al2O3 particles at weight fraction of 3% is close to that of AMMC sample with micro-sized Al2O3 at weight fraction of 5%, which means that higher hardness can be achieved at smaller weight fractions for metal matrix composites which are reinforced with nano-sized reinforcement particles compared to those with micro-sized particles. Although the weight fraction of nano-sized reinforcement particles in AMMNC with 3wt.% is less than that of micro-sized reinforcement particles in AMMC sample having 5wt.%, strengthening mechanisms (load transfer effect, Hall-Petch strengthening, Orowan strengthening, mismatch of coefficient of thermal expansion and elastic modulus [15, 16, 17, 18]) for nano-sized reinforcement particles are more effective than those for micro-sized reinforcement particles. As aforementioned, hardness values of both AMMCs and AMMNCs increase as weight fraction of reinforcement particles increases in this study. Similar results were obtained at the studies of Sajjadi et al. and [19] Shivakumar et al. [20] for the composites with nano-sized reinforcement particles and at the studies of Nagaral et al. [21] and Singh et al. [22] for the composites with micro-sized reinforcement particles.

Figure 4 Hardness comparison of unreinforced AlSi9Cu3 alloy and the composite samples with micro and nano-sized Al2O3 particles.
Figure 4

Hardness comparison of unreinforced AlSi9Cu3 alloy and the composite samples with micro and nano-sized Al2O3 particles.

Highest flexural strength is achieved at weight fraction of 2% for the AMMNC sample with nano-sized Al2O3 particles as seen in Figure 5. However, weight fraction of reinforcement particles more than 2% causes formation of clusters that prevent the homogeneous distribution of particles within the aluminium matrix. Maximum flexural strength can be achieved at 3.5wt.% for the AMMC sample with micro-sized Al2O3 particles. Among both AMMC and AMMNC samples, the highest flexural strength is obtained for the AMMNC sample having 2wt.% nano-sized Al2O3 particles. The flexural strength of AMMC sample having 3.5wt.% micro-sized Al2O3 particles is almost equal to that of AMMNC sample with 1wt.% nano-sized Al2O3 particles. It should be also noted that AMMC sample with 5wt.% micro-sized Al2O3 particles has a lower flexural strength than those of all AMMNC samples while the flexural strength of AMMC sample with 10wt.% micro-sized Al2O3 particles is far lower than that of unreinforced AlSi9Cu3 alloy. Flexural strength of a metal matrix composite is improved compared to a metal alloy; however, after starting of agglomeration of nano-sized particles at lower weight fractions and clustering of microsized particles at higher weight fractions, fracture of metal matrix composites can be observed earlier. The reason is the particle clusters behaving as stress points and crack initiator in the microstructure, which are detrimental for the mechanical properties of MMCs and MMNCs [23, 24, 25].

Figure 5 Comparison of flexural strengths of unreinforced AlSi9Cu3 alloy and the composite samples with micro and nano-sized Al2O3 particles.
Figure 5

Comparison of flexural strengths of unreinforced AlSi9Cu3 alloy and the composite samples with micro and nano-sized Al2O3 particles.

Figure 6 shows the fracture surface of the AMMC sample with 10wt.% micro-sized Al2O3 particles while fracture surface of AMMNC sample having 3wt.% nanosized Al2O3 particles is seen in Figure 7. White arrows show the voids forming due to particle removal from the regions of reinforcement particle clusters on the fracture surface, which clearly indicates that reinforcement particle clusters are detrimental influence on the mechanical properties of MMCs. It should be also noted that these regions can cause a decrease in relative density. When the sizes of the void regions for AMMNC sample having 3wt.% nano-sized Al2O3 particles and AMMC sample with 10wt.% micro-sized Al2O3 particles are compared with each other, the void size of the regions forming due to clusters of micro-sized Al2O3 particles is larger than that of the regions formed by clustering of nano-sized Al2O3 particles. Therefore, the clusters formed by micro-sized Al2O3 have a more detrimental influence on the flexural strength of MMCs than those formed by nano-sized Al2O3 particles.

Figure 6 SEM image of fracture surface of AMMC sample with 10wt.% micro-sized Al2O3 particles.
Figure 6

SEM image of fracture surface of AMMC sample with 10wt.% micro-sized Al2O3 particles.

Figure 7 SEM image of fracture surface of AMMNC sample having 3wt.% nano-sized Al2O3 particles.
Figure 7

SEM image of fracture surface of AMMNC sample having 3wt.% nano-sized Al2O3 particles.

4 Conclusion

The relative densities of all AMMC and AMMNC samples are lower than unreinforced AlSi9Cu3 alloy due to porosity formation with the increasing amount of reinforcement particles. Compared to micro-sized Al2O3 particles, nanosized Al2O3 particles have a more negative influence on the relative density due to higher wettability and clustering problems of nano-sized Al2O3 particles.

The hardness values for both AMMCs and AMMNCs reinforced with Al2O3 particles are higher than unreinforced AlSi9Cu3 alloy. Hardness of AMMCs and AMMNCs improves as the weight fraction of Al2O3 particles increases due to strengthening mechanisms.

Flexural strengths of AMMCs and AMMNCs reinforced with Al2O3 particles are improved when compared to AlSi9Cu3 alloy. Maximum flexural strength can be obtained at 3.5wt.% for the AMMC sample with micro-sized Al2O3 particles while highest flexural strength is achieved at weight fraction of 2% for the AMMNC sample with nanosized Al2O3 particles. Weight fraction of reinforcement particles more than 2% for AMMNC and 3.5.% for AMMC causes formation of clusters that prevent the homogeneous distribution of particles within the aluminium matrix. After starting of agglomeration of nano-sized particles at lower weight fractions and of clustering of micro-sized particles at higher weight fractions, fracture of AMMCs and AMMNCs can be observed earlier due to clusters behaving as crack initiator in the microstructure. Uniform distribution of reinforcement particles in the metal matrix is essential to obtain MMCs and MMNCs that have better mechanical properties. In addition, the percentage of reinforcement particles and processing techniques are the effecting factors which should be optimized for the next study.

Acknowledgments

The authors would like to thank Superpar A.Ş. for collaboration.

  1. Conflict of interest: Authors state no conflict of interest.

References

[1] Jordá J.M.M., Metal matrix composites for thermal management, In: Davim J.P. (Ed.), Metal matrix composites: Materials, manufacturing and engineering, Walter de Gruyter GmbH, Berlin, 2014.Search in Google Scholar

[2] Demirkol N., Bioactivity properties and characterization of commercial synthetic hydroxyapatite – 5 wt.% niobium (V) oxide – 5 wt.% magnesium oxide composite, Acta Phys. Pol. A, 2017, 132(3), 786-788.10.12693/APhysPolA.132.786Search in Google Scholar

[3] Bódis E., Tapasztó O., Károly Z., Fazekas P., Klébert S., Keszler A.M., Balázsi K., Szépvölgyi J., Spark plasma sintering of Si3N4/ multilayer graphene composites, Open Chem., 2015, 13, 484-489.10.1515/chem-2015-0064Search in Google Scholar

[4] Muley A.V., Aravindan S., Singh I.P., Nano and hybrid aluminum based metal matrix composites: an overview, Manufacturing Rev., 2015, 2(15), 1-13.10.1051/mfreview/2015018Search in Google Scholar

[5] Buyuk B., Tugrul A.B., Cengiz M., Yucel O., Goller G., Sahin F.C., Radiation shielding properties of spark plasma sintered boron carbide–aluminium composites, Acta Phys. Pol. A, 2015, 128(2-B), 132-134.10.12693/APhysPolA.128.B-132Search in Google Scholar

[6] Akkas A., Tugrul A.B., Buyuk B., Addemir A.O., Marsoglu M., Agacan B., Shielding effect of boron carbide aluminium metal matrix composite against gamma and neutron radiation, Acta Phys. Pol. A, 2015, 128(2-B), 176-179.10.12693/APhysPolA.128.B-176Search in Google Scholar

[7] Suthar J., Patel K.M., Processing issues, machining, and applications of aluminum metal matrix composites, Mater. Manuf. Process., 2018, 33(5), 499–527.10.1080/10426914.2017.1401713Search in Google Scholar

[8] Chaudhry M.A., Ali L., Ghauri K.M., Development and characterization of nanoparticle metal matrix composites: A Review, Int. J. Sci. Res. and Innovative Technol., 2017, 4(8), 90-130.Search in Google Scholar

[9] Rathee S., Maheshwari S., Siddiquee A.N., Srivastava M., A review of recent progress in solid state fabrication of composites and functionally graded systems via friction stir processing, Crit. Rev. Solid State Mater. Sci., 2017, 1-33.10.1080/10408436.2017.1358146Search in Google Scholar

[10] Kannan C., Ramanujam R., Comparative study on the mechanical and microstructural characterisation of AA 7075 nano and hybrid nanocomposites produced by stir and squeeze casting, J. Adv. Res., 2017, 8(4), 309–319.10.1016/j.jare.2017.02.005Search in Google Scholar PubMed PubMed Central

[11] Razzaq A.M., Majid D.L.A.A., Ishak M.R., Uday M.B., A brief research review for improvement methods the wettability between ceramic reinforcement particulate and aluminium matrix composites, IOP Conf. Ser.: Mater. Sci. Eng., 2017, 203, 1-6.10.1088/1757-899X/203/1/012002Search in Google Scholar

[12] Srivastava A., Recent advances in metal matrix composites (MMCs): A review, Biomed. J. Sci. & Tech. Res., 2017, 1(2), 1-3.10.26717/BJSTR.2017.01.000236Search in Google Scholar

[13] Fatile B.O., Adewuyi B.O., Owoyemi H.T., Synthesis and characterization of ZA-27 alloy matrix composites reinforced with zinc oxide nanoparticles, Eng. Sci. Technol. Int. J., 2017, 20(3), 1147-1154.10.1016/j.jestch.2017.01.001Search in Google Scholar

[14] Iqbal A.K.M.A., Nuruzzaman D.M., Effect of the reinforcement on the mechanical properties of aluminium matrix composite: A review, Int. J. Appl. Eng. Res., 2016, 11(21), 10408-10413.Search in Google Scholar

[15] Zhang Z., Chen D.L., Contribution of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites, Mater. Sci. Eng. A, 2008, 483–484, 148-152.10.1016/j.msea.2006.10.184Search in Google Scholar

[16] Zhang Z., Chen D.L., Consideration of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites: A model for predicting their yield strength, Scripta Mater., 2006, 54(7), 1321-1326.10.1016/j.scriptamat.2005.12.017Search in Google Scholar

[17] Sanaty-Zadeh A., Comparison between current models for the strength of particulate-reinforced metal matrix nanocomposites with emphasis on consideration of Hall–Petch effect, Mater. Sci. Eng. A, 2012, 531, 112–118.10.1016/j.msea.2011.10.043Search in Google Scholar

[18] Casati R., Vedani M., Metal matrix composites reinforced by nano-particles–a review, Metals, 2014, 4(1), 65-83.10.3390/met4010065Search in Google Scholar

[19] Sajjadi S.A., Ezatpour H.R., Parizi M.T., Comparison of microstructure and mechanical properties of A356 aluminum alloy/Al2O3 composites fabricated by stir and compo-casting processes, Mater. Des., 2012, 34, 106-111.10.1016/j.matdes.2011.07.037Search in Google Scholar

[20] Shivakumar N., Vasu V., Narasaiah N., Kumar S., Synthesis and characterization of nano-sized Al2O3 particle reinforced ZA-27 metal matrix composites, Procedia Mater. Sci., 2015, 10, 159-167.10.1016/j.mspro.2015.06.037Search in Google Scholar

[21] Nagaral M., Bharath V., Auradi V., Effect of Al2O3 particles on mechanical and wear properties of 6061Al alloy metal matrix composites, J. Material Sci. Eng., 2013, 2(1), 1-4.10.4172/2169-0022.1000120Search in Google Scholar

[22] Singh L., Ram B., Singh A., Optimization of process parameter for stir casted aluminium metal matrix composite using taguchi method, Int. J. Res. Eng. Technol., 2013, 2(8), 375-383.10.15623/ijret.2013.0208059Search in Google Scholar

[23] Ramesh C.S., Keshavamurthy R., Madhusudhan J., Fatigue behavior of Ni-P coated Si3N4 reinforced Al6061 composites, Procedia Mater. Sci., 2014, 6, 1444-1454.10.1016/j.mspro.2014.07.124Search in Google Scholar

[24] Manjunatha B., Niranjan H.B., Effect of extrusion on strength and toughness of boron carbide reinforced aluminum metal matrix composites, Int. J. Eng. Technol. Sci. Res., 2017, 4(12), 499-505.Search in Google Scholar

[25] Iqbal A.K.M.A., Arai Y., Araki W., Effect of reinforcement clustering on crack initiation mechanism in a cast hybrid metal matrix composite during low cycle fatigue, Open J. Compos. Mater., 2013, 3, 97-106.10.4236/ojcm.2013.34010Search in Google Scholar

Received: 2018-01-22
Accepted: 2018-05-30
Published Online: 2018-08-13

© 2018 Tennur Gülşen Ünal, Ege Anıl Diler, published by De Gruyter

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Articles in the same Issue

  1. Regular Articles
  2. The effect of CuO modification for a TiO2 nanotube confined CeO2 catalyst on the catalytic combustion of butane
  3. The preparation and antibacterial activity of cellulose/ZnO composite: a review
  4. Linde Type A and nano magnetite/NaA zeolites: cytotoxicity and doxorubicin loading efficiency
  5. Performance and thermal decomposition analysis of foaming agent NPL-10 for use in heavy oil recovery by steam injection
  6. Spectroscopic (FT-IR, FT-Raman, UV, 1H and 13C NMR) insights, electronic profiling and DFT computations on ({(E)-[3-(1H-imidazol-1-yl)-1-phenylpropylidene] amino}oxy)(4-nitrophenyl)methanone, an imidazole-bearing anti-Candida agent
  7. A Simplistic Preliminary Assessment of Ginstling-Brounstein Model for Solid Spherical Particles in the Context of a Diffusion-Controlled Synthesis
  8. M-Polynomials And Topological Indices Of Zigzag And Rhombic Benzenoid Systems
  9. Photochemical Transformation of some 3-benzyloxy-2-(benzo[b]thiophen-2-yl)-4Hchromen-4-ones: A Remote Substituent Effect
  10. Dynamic Changes of Secondary Metabolites and Antioxidant Activity of Ligustrum lucidum During Fruit Growth
  11. Studies on the flammability of polypropylene/ammonium polyphosphate and montmorillonite by using the cone calorimeter test
  12. DSC, FT-IR, NIR, NIR-PCA and NIR-ANOVA for determination of chemical stability of diuretic drugs: impact of excipients
  13. Antioxidant and Hepatoprotective Effects of Methanolic Extracts of Zilla spinosa and Hammada elegans Against Carbon Tetrachlorideinduced Hepatotoxicity in Rats
  14. Prunus cerasifera Ehrh. fabricated ZnO nano falcates and its photocatalytic and dose dependent in vitro bio-activity
  15. Organic biocides hosted in layered double hydroxides: enhancing antimicrobial activity
  16. Experimental study on the regulation of the cholinergic pathway in renal macrophages by microRNA-132 to alleviate inflammatory response
  17. Synthesis, characterization, in-vitro antimicrobial properties, molecular docking and DFT studies of 3-{(E)-[(4,6-dimethylpyrimidin-2-yl)imino]methyl} naphthalen-2-ol and Heteroleptic Mn(II), Co(II), Ni(II) and Zn(II) complexes
  18. M-Polynomials and Topological Indices of Dominating David Derived Networks
  19. Human Health Risk Assessment of Trace Metals in Surface Water Due to Leachate from the Municipal Dumpsite by Pollution Index: A Case Study from Ndawuse River, Abuja, Nigeria
  20. Analysis of Bowel Diseases from Blood Serum by Autofluorescence and Atomic Force Microscopy Techniques
  21. Hydrographic parameters and distribution of dissolved Cu, Ni, Zn and nutrients near Jeddah desalination plant
  22. Relationships between diatoms and environmental variables in industrial water biotopes of Trzuskawica S.A. (Poland)
  23. Optimum Conversion of Major Ginsenoside Rb1 to Minor Ginsenoside Rg3(S) by Pulsed Electric Field-Assisted Acid Hydrolysis Treatment
  24. Antioxidant, Anti-microbial Properties and Chemical Composition of Cumin Essential Oils Extracted by Three Methods
  25. Regulatory mechanism of ulinastatin on autophagy of macrophages and renal tubular epithelial cells
  26. Investigation of the sustained-release mechanism of hydroxypropyl methyl cellulose skeleton type Acipimox tablets
  27. Bio-accumulation of Polycyclic Aromatic Hydrocarbons in the Grey Mangrove (Avicennia marina) along Arabian Gulf, Saudi Coast
  28. Dynamic Change of Secondary Metabolites and spectrum-effect relationship of Malus halliana Koehne flowers during blooming
  29. Lipids constituents from Gardenia aqualla Stapf & Hutch
  30. Effect of using microwaves for catalysts preparation on the catalytic acetalization of glycerol with furfural to obtain fuel additives
  31. Effect of Humic Acid on the Degradation of Methylene Blue by Peroxymonosulfate
  32. Serum containing drugs of Gua Lou Xie Bai decoction (GLXB-D) can inhibit TGF-β1-Induced Epithelial to Mesenchymal Transition (EMT) in A549 Cells
  33. Antiulcer Activity of Different Extracts of Anvillea garcinii and Isolation of Two New Secondary Metabolites
  34. Analysis of Metabolites in Cabernet Sauvignon and Shiraz Dry Red Wines from Shanxi by 1H NMR Spectroscopy Combined with Pattern Recognition Analysis
  35. Can water temperature impact litter decomposition under pollution of copper and zinc mixture
  36. Released from ZrO2/SiO2 coating resveratrol inhibits senescence and oxidative stress of human adipose-derived stem cells (ASC)
  37. Validated thin-layer chromatographic method for alternative and simultaneous determination of two anti-gout agents in their fixed dose combinations
  38. Fast removal of pollutants from vehicle emissions during cold-start stage
  39. Review Article
  40. Catalytic activities of heterogeneous catalysts obtained by copolymerization of metal-containing 2-(acetoacetoxy)ethyl methacrylate
  41. Antibiotic Residue in the Aquatic Environment: Status in Africa
  42. Regular Articles
  43. Mercury fractionation in gypsum using temperature desorption and mass spectrometric detection
  44. Phytosynthetic Ag doped ZnO nanoparticles: Semiconducting green remediators
  45. Epithelial–Mesenchymal Transition Induced by SMAD4 Activation in Invasive Growth Hormone-Secreting Adenomas
  46. Physicochemical properties of stabilized sewage sludge admixtures by modified steel slag
  47. In Vitro Cytotoxic and Antiproliferative Activity of Cydonia oblonga flower petals, leaf and fruit pellet ethanolic extracts. Docking simulation of the active flavonoids on anti-apoptotic protein Bcl-2
  48. Synthesis and Characterization of Pd exchanged MMT Clay for Mizoroki-Heck Reaction
  49. A new selective, and sensitive method for the determination of lixivaptan, a vasopressin 2 (V2)-receptor antagonist, in mouse plasma and its application in a pharmacokinetic study
  50. Anti-EGFL7 antibodies inhibit rat prolactinoma MMQ cells proliferation and PRL secretion
  51. Density functional theory calculations, vibration spectral analysis and molecular docking of the antimicrobial agent 6-(1,3-benzodioxol-5-ylmethyl)-5-ethyl-2-{[2-(morpholin-4-yl)ethyl] sulfanyl}pyrimidin-4(3H)-one
  52. Effect of Nano Zeolite on the Transformation of Cadmium Speciation and Its Uptake by Tobacco in Cadmium-contaminated Soil
  53. Effects and Mechanisms of Jinniu Capsule on Methamphetamine-Induced Conditioned Place Preference in Rats
  54. Calculating the Degree-based Topological Indices of Dendrimers
  55. Efficient optimization and mineralization of UV absorbers: A comparative investigation with Fenton and UV/H2O2
  56. Metabolites of Tryptophane and Phenylalanine as Markers of Small Bowel Ischemia-Reperfusion Injury
  57. Adsorption and determination of polycyclic aromatic hydrocarbons in water through the aggregation of graphene oxide
  58. The role of NR2C2 in the prolactinomas
  59. Chromium removal from industrial wastewater using Phyllostachys pubescens biomass loaded Cu-S nanospheres
  60. Hydrotalcite Anchored Ruthenium Catalyst for CO2 Hydrogenation Reaction
  61. Preparation of Calcium Fluoride using Phosphogypsum by Orthogonal Experiment
  62. The mechanism of antibacterial activity of corylifolinin against three clinical bacteria from Psoralen corylifolia L
  63. 2-formyl-3,6-bis(hydroxymethyl)phenyl benzoate in Electrochemical Dry Cell
  64. Electro-photocatalytic degradation of amoxicillin using calcium titanate
  65. Effect of Malus halliana Koehne Polysaccharides on Functional Constipation
  66. Structural Properties and Nonlinear Optical Responses of Halogenated Compounds: A DFT Investigation on Molecular Modelling
  67. DMFDMA catalyzed synthesis of 2-((Dimethylamino)methylene)-3,4-dihydro-9-arylacridin-1(2H)-ones and their derivatives: in-vitro antifungal, antibacterial and antioxidant evaluations
  68. Production of Methanol as a Fuel Energy from CO2 Present in Polluted Seawater - A Photocatalytic Outlook
  69. Study of different extraction methods on finger print and fatty acid of raw beef fat using fourier transform infrared and gas chromatography-mass spectrometry
  70. Determination of trace fluoroquinolones in water solutions and in medicinal preparations by conventional and synchronous fluorescence spectrometry
  71. Extraction and determination of flavonoids in Carthamus tinctorius
  72. Therapeutic Application of Zinc and Vanadium Complexes against Diabetes Mellitus a Coronary Disease: A review
  73. Study of calcined eggshell as potential catalyst for biodiesel formation using used cooking oil
  74. Manganese oxalates - structure-based Insights
  75. Topological Indices of H-Naphtalenic Nanosheet
  76. Long-Term Dissolution of Glass Fibers in Water Described by Dissolving Cylinder Zero-Order Kinetic Model: Mass Loss and Radius Reduction
  77. Topological study of the para-line graphs of certain pentacene via topological indices
  78. A brief insight into the prediction of water vapor transmissibility in highly impermeable hybrid nanocomposites based on bromobutyl/epichlorohydrin rubber blends
  79. Comparative sulfite assay by voltammetry using Pt electrodes, photometry and titrimetry: Application to cider, vinegar and sugar analysis
  80. MicroRNA delivery mediated by PEGylated polyethylenimine for prostate cancer therapy
  81. Reversible Fluorescent Turn-on Sensors for Fe3+ based on a Receptor Composed of Tri-oxygen Atoms of Amide Groups in Water
  82. Sonocatalytic degradation of methyl orange in aqueous solution using Fe-doped TiO2 nanoparticles under mechanical agitation
  83. Hydrotalcite Anchored Ruthenium Catalyst for CO2 Hydrogenation Reaction
  84. Production and Analysis of Recycled Ammonium Perrhenate from CMSX-4 superalloys
  85. Topical Issue on Agriculture
  86. New phosphorus biofertilizers from renewable raw materials in the aspect of cadmium and lead contents in soil and plants
  87. Survey of content of cadmium, calcium, chromium, copper, iron, lead, magnesium, manganese, mercury, sodium and zinc in chamomile and green tea leaves by electrothermal or flame atomizer atomic absorption spectrometry
  88. Biogas digestate – benefits and risks for soil fertility and crop quality – an evaluation of grain maize response
  89. A numerical analysis of heat transfer in a cross-current heat exchanger with controlled and newly designed air flows
  90. Freshwater green macroalgae as a biosorbent of Cr(III) ions
  91. The main influencing factors of soil mechanical characteristics of the gravity erosion environment in the dry-hot valley of Jinsha river
  92. Free amino acids in Viola tricolor in relation to different habitat conditions
  93. The influence of filler amount on selected properties of new experimental resin dental composite
  94. Effect of poultry wastewater irrigation on nitrogen, phosphorus and carbon contents in farmland soil
  95. Response of spring wheat to NPK and S fertilization. The content and uptake of macronutrients and the value of ionic ratios
  96. The Effect of Macroalgal Extracts and Near Infrared Radiation on Germination of Soybean Seedlings: Preliminary Research Results
  97. Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill
  98. Topical Issue on Research for Natural Bioactive Products
  99. Synthesis of (±)-3,4-dimethoxybenzyl-4-methyloctanoate as a novel internal standard for capsinoid determination by HPLC-ESI-MS/MS(QTOF)
  100. Repellent activity of monoterpenoid esters with neurotransmitter amino acids against yellow fever mosquito, Aedes aegypti
  101. Effect of Flammulina velutipes (golden needle mushroom, eno-kitake) polysaccharides on constipation
  102. Bioassay-directed fractionation of a blood coagulation factor Xa inhibitor, betulinic acid from Lycopus lucidus
  103. Antifungal and repellent activities of the essential oils from three aromatic herbs from western Himalaya
  104. Chemical composition and microbiological evaluation of essential oil from Hyssopus officinalis L. with white and pink flowers
  105. Bioassay-guided isolation and identification of Aedes aegypti larvicidal and biting deterrent compounds from Veratrum lobelianum
  106. α-Terpineol, a natural monoterpene: A review of its biological properties
  107. Utility of essential oils for development of host-based lures for Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae), vector of laurel wilt
  108. Phenolic composition and antioxidant potential of different organs of Kazakh Crataegus almaatensis Pojark: A comparison with the European Crataegus oxyacantha L. flowers
  109. Isolation of eudesmane type sesquiterpene ketone from Prangos heyniae H.Duman & M.F.Watson essential oil and mosquitocidal activity of the essential oils
  110. Comparative analysis of the polyphenols profiles and the antioxidant and cytotoxicity properties of various blue honeysuckle varieties
  111. Special Issue on ICCESEN 2017
  112. Modelling world energy security data from multinomial distribution by generalized linear model under different cumulative link functions
  113. Pine Cone and Boron Compounds Effect as Reinforcement on Mechanical and Flammability Properties of Polyester Composites
  114. Artificial Neural Network Modelling for Prediction of SNR Effected by Probe Properties on Ultrasonic Inspection of Austenitic Stainless Steel Weldments
  115. Calculation and 3D analyses of ERR in the band crack front contained in a rectangular plate made of multilayered material
  116. Improvement of fuel properties of biodiesel with bioadditive ethyl levulinate
  117. Properties of AlSi9Cu3 metal matrix micro and nano composites produced via stir casting
  118. Investigation of Antibacterial Properties of Ag Doped TiO2 Nanofibers Prepared by Electrospinning Process
  119. Modeling of Total Phenolic contents in Various Tea samples by Experimental Design Methods
  120. Nickel doping effect on the structural and optical properties of indium sulfide thin films by SILAR
  121. The effect mechanism of Ginnalin A as a homeopathic agent on various cancer cell lines
  122. Excitation functions of proton induced reactions of some radioisotopes used in medicine
  123. Oxide ionic conductivity and microstructures of Pr and Sm co-doped CeO2-based systems
  124. Rapid Synthesis of Metallic Reinforced in Situ Intermetallic Composites in Ti-Al-Nb System via Resistive Sintering
  125. Oxidation Behavior of NiCr/YSZ Thermal Barrier Coatings (TBCs)
  126. Clustering Analysis of Normal Strength Concretes Produced with Different Aggregate Types
  127. Magnetic Nano-Sized Solid Acid Catalyst Bearing Sulfonic Acid Groups for Biodiesel Synthesis
  128. The biological activities of Arabis alpina L. subsp. brevifolia (DC.) Cullen against food pathogens
  129. Humidity properties of Schiff base polymers
  130. Free Vibration Analysis of Fiber Metal Laminated Straight Beam
  131. Comparative study of in vitro antioxidant, acetylcholinesterase and butyrylcholinesterase activity of alfalfa (Medicago sativa L.) collected during different growth stages
  132. Isothermal Oxidation Behavior of Gadolinium Zirconate (Gd2Zr2O7) Thermal Barrier Coatings (TBCs) produced by Electron Beam Physical Vapor Deposition (EB-PVD) technique
  133. Optimization of Adsorption Parameters for Ultra-Fine Calcite Using a Box-Behnken Experimental Design
  134. The Microstructural Investigation of Vermiculite-Infiltrated Electron Beam Physical Vapor Deposition Thermal Barrier Coatings
  135. Modelling Porosity Permeability of Ceramic Tiles using Fuzzy Taguchi Method
  136. Experimental and theoretical study of a novel naphthoquinone Schiff base
  137. Physicochemical properties of heat treated sille stone for ceramic industry
  138. Sand Dune Characterization for Preparing Metallurgical Grade Silicon
  139. Catalytic Applications of Large Pore Sulfonic Acid-Functionalized SBA-15 Mesoporous Silica for Esterification
  140. One-photon Absorption Characterizations, Dipole Polarizabilities and Second Hyperpolarizabilities of Chlorophyll a and Crocin
  141. The Optical and Crystallite Characterization of Bilayer TiO2 Films Coated on Different ITO layers
  142. Topical Issue on Bond Activation
  143. Metal-mediated reactions towards the synthesis of a novel deaminolysed bisurea, dicarbamolyamine
  144. The structure of ortho-(trifluoromethyl)phenol in comparison to its homologues – A combined experimental and theoretical study
  145. Heterogeneous catalysis with encapsulated haem and other synthetic porphyrins: Harnessing the power of porphyrins for oxidation reactions
  146. Recent Advances on Mechanistic Studies on C–H Activation Catalyzed by Base Metals
  147. Reactions of the organoplatinum complex [Pt(cod) (neoSi)Cl] (neoSi = trimethylsilylmethyl) with the non-coordinating anions SbF6– and BPh4–
  148. Erratum
  149. Investigation on Two Compounds of O, O’-dithiophosphate Derivatives as Corrosion Inhibitors for Q235 Steel in Hydrochloric Acid Solution
https://doi.org/10.1515/chem-2018-0079
Keywords for this article
Metal matrix composites; Nanocomposites; Stir Casting; Microstructure; Mechanical Properties
Creative Commons
BY-NC-ND 4.0

Articles in the same Issue

  1. Regular Articles
  2. The effect of CuO modification for a TiO2 nanotube confined CeO2 catalyst on the catalytic combustion of butane
  3. The preparation and antibacterial activity of cellulose/ZnO composite: a review
  4. Linde Type A and nano magnetite/NaA zeolites: cytotoxicity and doxorubicin loading efficiency
  5. Performance and thermal decomposition analysis of foaming agent NPL-10 for use in heavy oil recovery by steam injection
  6. Spectroscopic (FT-IR, FT-Raman, UV, 1H and 13C NMR) insights, electronic profiling and DFT computations on ({(E)-[3-(1H-imidazol-1-yl)-1-phenylpropylidene] amino}oxy)(4-nitrophenyl)methanone, an imidazole-bearing anti-Candida agent
  7. A Simplistic Preliminary Assessment of Ginstling-Brounstein Model for Solid Spherical Particles in the Context of a Diffusion-Controlled Synthesis
  8. M-Polynomials And Topological Indices Of Zigzag And Rhombic Benzenoid Systems
  9. Photochemical Transformation of some 3-benzyloxy-2-(benzo[b]thiophen-2-yl)-4Hchromen-4-ones: A Remote Substituent Effect
  10. Dynamic Changes of Secondary Metabolites and Antioxidant Activity of Ligustrum lucidum During Fruit Growth
  11. Studies on the flammability of polypropylene/ammonium polyphosphate and montmorillonite by using the cone calorimeter test
  12. DSC, FT-IR, NIR, NIR-PCA and NIR-ANOVA for determination of chemical stability of diuretic drugs: impact of excipients
  13. Antioxidant and Hepatoprotective Effects of Methanolic Extracts of Zilla spinosa and Hammada elegans Against Carbon Tetrachlorideinduced Hepatotoxicity in Rats
  14. Prunus cerasifera Ehrh. fabricated ZnO nano falcates and its photocatalytic and dose dependent in vitro bio-activity
  15. Organic biocides hosted in layered double hydroxides: enhancing antimicrobial activity
  16. Experimental study on the regulation of the cholinergic pathway in renal macrophages by microRNA-132 to alleviate inflammatory response
  17. Synthesis, characterization, in-vitro antimicrobial properties, molecular docking and DFT studies of 3-{(E)-[(4,6-dimethylpyrimidin-2-yl)imino]methyl} naphthalen-2-ol and Heteroleptic Mn(II), Co(II), Ni(II) and Zn(II) complexes
  18. M-Polynomials and Topological Indices of Dominating David Derived Networks
  19. Human Health Risk Assessment of Trace Metals in Surface Water Due to Leachate from the Municipal Dumpsite by Pollution Index: A Case Study from Ndawuse River, Abuja, Nigeria
  20. Analysis of Bowel Diseases from Blood Serum by Autofluorescence and Atomic Force Microscopy Techniques
  21. Hydrographic parameters and distribution of dissolved Cu, Ni, Zn and nutrients near Jeddah desalination plant
  22. Relationships between diatoms and environmental variables in industrial water biotopes of Trzuskawica S.A. (Poland)
  23. Optimum Conversion of Major Ginsenoside Rb1 to Minor Ginsenoside Rg3(S) by Pulsed Electric Field-Assisted Acid Hydrolysis Treatment
  24. Antioxidant, Anti-microbial Properties and Chemical Composition of Cumin Essential Oils Extracted by Three Methods
  25. Regulatory mechanism of ulinastatin on autophagy of macrophages and renal tubular epithelial cells
  26. Investigation of the sustained-release mechanism of hydroxypropyl methyl cellulose skeleton type Acipimox tablets
  27. Bio-accumulation of Polycyclic Aromatic Hydrocarbons in the Grey Mangrove (Avicennia marina) along Arabian Gulf, Saudi Coast
  28. Dynamic Change of Secondary Metabolites and spectrum-effect relationship of Malus halliana Koehne flowers during blooming
  29. Lipids constituents from Gardenia aqualla Stapf & Hutch
  30. Effect of using microwaves for catalysts preparation on the catalytic acetalization of glycerol with furfural to obtain fuel additives
  31. Effect of Humic Acid on the Degradation of Methylene Blue by Peroxymonosulfate
  32. Serum containing drugs of Gua Lou Xie Bai decoction (GLXB-D) can inhibit TGF-β1-Induced Epithelial to Mesenchymal Transition (EMT) in A549 Cells
  33. Antiulcer Activity of Different Extracts of Anvillea garcinii and Isolation of Two New Secondary Metabolites
  34. Analysis of Metabolites in Cabernet Sauvignon and Shiraz Dry Red Wines from Shanxi by 1H NMR Spectroscopy Combined with Pattern Recognition Analysis
  35. Can water temperature impact litter decomposition under pollution of copper and zinc mixture
  36. Released from ZrO2/SiO2 coating resveratrol inhibits senescence and oxidative stress of human adipose-derived stem cells (ASC)
  37. Validated thin-layer chromatographic method for alternative and simultaneous determination of two anti-gout agents in their fixed dose combinations
  38. Fast removal of pollutants from vehicle emissions during cold-start stage
  39. Review Article
  40. Catalytic activities of heterogeneous catalysts obtained by copolymerization of metal-containing 2-(acetoacetoxy)ethyl methacrylate
  41. Antibiotic Residue in the Aquatic Environment: Status in Africa
  42. Regular Articles
  43. Mercury fractionation in gypsum using temperature desorption and mass spectrometric detection
  44. Phytosynthetic Ag doped ZnO nanoparticles: Semiconducting green remediators
  45. Epithelial–Mesenchymal Transition Induced by SMAD4 Activation in Invasive Growth Hormone-Secreting Adenomas
  46. Physicochemical properties of stabilized sewage sludge admixtures by modified steel slag
  47. In Vitro Cytotoxic and Antiproliferative Activity of Cydonia oblonga flower petals, leaf and fruit pellet ethanolic extracts. Docking simulation of the active flavonoids on anti-apoptotic protein Bcl-2
  48. Synthesis and Characterization of Pd exchanged MMT Clay for Mizoroki-Heck Reaction
  49. A new selective, and sensitive method for the determination of lixivaptan, a vasopressin 2 (V2)-receptor antagonist, in mouse plasma and its application in a pharmacokinetic study
  50. Anti-EGFL7 antibodies inhibit rat prolactinoma MMQ cells proliferation and PRL secretion
  51. Density functional theory calculations, vibration spectral analysis and molecular docking of the antimicrobial agent 6-(1,3-benzodioxol-5-ylmethyl)-5-ethyl-2-{[2-(morpholin-4-yl)ethyl] sulfanyl}pyrimidin-4(3H)-one
  52. Effect of Nano Zeolite on the Transformation of Cadmium Speciation and Its Uptake by Tobacco in Cadmium-contaminated Soil
  53. Effects and Mechanisms of Jinniu Capsule on Methamphetamine-Induced Conditioned Place Preference in Rats
  54. Calculating the Degree-based Topological Indices of Dendrimers
  55. Efficient optimization and mineralization of UV absorbers: A comparative investigation with Fenton and UV/H2O2
  56. Metabolites of Tryptophane and Phenylalanine as Markers of Small Bowel Ischemia-Reperfusion Injury
  57. Adsorption and determination of polycyclic aromatic hydrocarbons in water through the aggregation of graphene oxide
  58. The role of NR2C2 in the prolactinomas
  59. Chromium removal from industrial wastewater using Phyllostachys pubescens biomass loaded Cu-S nanospheres
  60. Hydrotalcite Anchored Ruthenium Catalyst for CO2 Hydrogenation Reaction
  61. Preparation of Calcium Fluoride using Phosphogypsum by Orthogonal Experiment
  62. The mechanism of antibacterial activity of corylifolinin against three clinical bacteria from Psoralen corylifolia L
  63. 2-formyl-3,6-bis(hydroxymethyl)phenyl benzoate in Electrochemical Dry Cell
  64. Electro-photocatalytic degradation of amoxicillin using calcium titanate
  65. Effect of Malus halliana Koehne Polysaccharides on Functional Constipation
  66. Structural Properties and Nonlinear Optical Responses of Halogenated Compounds: A DFT Investigation on Molecular Modelling
  67. DMFDMA catalyzed synthesis of 2-((Dimethylamino)methylene)-3,4-dihydro-9-arylacridin-1(2H)-ones and their derivatives: in-vitro antifungal, antibacterial and antioxidant evaluations
  68. Production of Methanol as a Fuel Energy from CO2 Present in Polluted Seawater - A Photocatalytic Outlook
  69. Study of different extraction methods on finger print and fatty acid of raw beef fat using fourier transform infrared and gas chromatography-mass spectrometry
  70. Determination of trace fluoroquinolones in water solutions and in medicinal preparations by conventional and synchronous fluorescence spectrometry
  71. Extraction and determination of flavonoids in Carthamus tinctorius
  72. Therapeutic Application of Zinc and Vanadium Complexes against Diabetes Mellitus a Coronary Disease: A review
  73. Study of calcined eggshell as potential catalyst for biodiesel formation using used cooking oil
  74. Manganese oxalates - structure-based Insights
  75. Topological Indices of H-Naphtalenic Nanosheet
  76. Long-Term Dissolution of Glass Fibers in Water Described by Dissolving Cylinder Zero-Order Kinetic Model: Mass Loss and Radius Reduction
  77. Topological study of the para-line graphs of certain pentacene via topological indices
  78. A brief insight into the prediction of water vapor transmissibility in highly impermeable hybrid nanocomposites based on bromobutyl/epichlorohydrin rubber blends
  79. Comparative sulfite assay by voltammetry using Pt electrodes, photometry and titrimetry: Application to cider, vinegar and sugar analysis
  80. MicroRNA delivery mediated by PEGylated polyethylenimine for prostate cancer therapy
  81. Reversible Fluorescent Turn-on Sensors for Fe3+ based on a Receptor Composed of Tri-oxygen Atoms of Amide Groups in Water
  82. Sonocatalytic degradation of methyl orange in aqueous solution using Fe-doped TiO2 nanoparticles under mechanical agitation
  83. Hydrotalcite Anchored Ruthenium Catalyst for CO2 Hydrogenation Reaction
  84. Production and Analysis of Recycled Ammonium Perrhenate from CMSX-4 superalloys
  85. Topical Issue on Agriculture
  86. New phosphorus biofertilizers from renewable raw materials in the aspect of cadmium and lead contents in soil and plants
  87. Survey of content of cadmium, calcium, chromium, copper, iron, lead, magnesium, manganese, mercury, sodium and zinc in chamomile and green tea leaves by electrothermal or flame atomizer atomic absorption spectrometry
  88. Biogas digestate – benefits and risks for soil fertility and crop quality – an evaluation of grain maize response
  89. A numerical analysis of heat transfer in a cross-current heat exchanger with controlled and newly designed air flows
  90. Freshwater green macroalgae as a biosorbent of Cr(III) ions
  91. The main influencing factors of soil mechanical characteristics of the gravity erosion environment in the dry-hot valley of Jinsha river
  92. Free amino acids in Viola tricolor in relation to different habitat conditions
  93. The influence of filler amount on selected properties of new experimental resin dental composite
  94. Effect of poultry wastewater irrigation on nitrogen, phosphorus and carbon contents in farmland soil
  95. Response of spring wheat to NPK and S fertilization. The content and uptake of macronutrients and the value of ionic ratios
  96. The Effect of Macroalgal Extracts and Near Infrared Radiation on Germination of Soybean Seedlings: Preliminary Research Results
  97. Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill
  98. Topical Issue on Research for Natural Bioactive Products
  99. Synthesis of (±)-3,4-dimethoxybenzyl-4-methyloctanoate as a novel internal standard for capsinoid determination by HPLC-ESI-MS/MS(QTOF)
  100. Repellent activity of monoterpenoid esters with neurotransmitter amino acids against yellow fever mosquito, Aedes aegypti
  101. Effect of Flammulina velutipes (golden needle mushroom, eno-kitake) polysaccharides on constipation
  102. Bioassay-directed fractionation of a blood coagulation factor Xa inhibitor, betulinic acid from Lycopus lucidus
  103. Antifungal and repellent activities of the essential oils from three aromatic herbs from western Himalaya
  104. Chemical composition and microbiological evaluation of essential oil from Hyssopus officinalis L. with white and pink flowers
  105. Bioassay-guided isolation and identification of Aedes aegypti larvicidal and biting deterrent compounds from Veratrum lobelianum
  106. α-Terpineol, a natural monoterpene: A review of its biological properties
  107. Utility of essential oils for development of host-based lures for Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae), vector of laurel wilt
  108. Phenolic composition and antioxidant potential of different organs of Kazakh Crataegus almaatensis Pojark: A comparison with the European Crataegus oxyacantha L. flowers
  109. Isolation of eudesmane type sesquiterpene ketone from Prangos heyniae H.Duman & M.F.Watson essential oil and mosquitocidal activity of the essential oils
  110. Comparative analysis of the polyphenols profiles and the antioxidant and cytotoxicity properties of various blue honeysuckle varieties
  111. Special Issue on ICCESEN 2017
  112. Modelling world energy security data from multinomial distribution by generalized linear model under different cumulative link functions
  113. Pine Cone and Boron Compounds Effect as Reinforcement on Mechanical and Flammability Properties of Polyester Composites
  114. Artificial Neural Network Modelling for Prediction of SNR Effected by Probe Properties on Ultrasonic Inspection of Austenitic Stainless Steel Weldments
  115. Calculation and 3D analyses of ERR in the band crack front contained in a rectangular plate made of multilayered material
  116. Improvement of fuel properties of biodiesel with bioadditive ethyl levulinate
  117. Properties of AlSi9Cu3 metal matrix micro and nano composites produced via stir casting
  118. Investigation of Antibacterial Properties of Ag Doped TiO2 Nanofibers Prepared by Electrospinning Process
  119. Modeling of Total Phenolic contents in Various Tea samples by Experimental Design Methods
  120. Nickel doping effect on the structural and optical properties of indium sulfide thin films by SILAR
  121. The effect mechanism of Ginnalin A as a homeopathic agent on various cancer cell lines
  122. Excitation functions of proton induced reactions of some radioisotopes used in medicine
  123. Oxide ionic conductivity and microstructures of Pr and Sm co-doped CeO2-based systems
  124. Rapid Synthesis of Metallic Reinforced in Situ Intermetallic Composites in Ti-Al-Nb System via Resistive Sintering
  125. Oxidation Behavior of NiCr/YSZ Thermal Barrier Coatings (TBCs)
  126. Clustering Analysis of Normal Strength Concretes Produced with Different Aggregate Types
  127. Magnetic Nano-Sized Solid Acid Catalyst Bearing Sulfonic Acid Groups for Biodiesel Synthesis
  128. The biological activities of Arabis alpina L. subsp. brevifolia (DC.) Cullen against food pathogens
  129. Humidity properties of Schiff base polymers
  130. Free Vibration Analysis of Fiber Metal Laminated Straight Beam
  131. Comparative study of in vitro antioxidant, acetylcholinesterase and butyrylcholinesterase activity of alfalfa (Medicago sativa L.) collected during different growth stages
  132. Isothermal Oxidation Behavior of Gadolinium Zirconate (Gd2Zr2O7) Thermal Barrier Coatings (TBCs) produced by Electron Beam Physical Vapor Deposition (EB-PVD) technique
  133. Optimization of Adsorption Parameters for Ultra-Fine Calcite Using a Box-Behnken Experimental Design
  134. The Microstructural Investigation of Vermiculite-Infiltrated Electron Beam Physical Vapor Deposition Thermal Barrier Coatings
  135. Modelling Porosity Permeability of Ceramic Tiles using Fuzzy Taguchi Method
  136. Experimental and theoretical study of a novel naphthoquinone Schiff base
  137. Physicochemical properties of heat treated sille stone for ceramic industry
  138. Sand Dune Characterization for Preparing Metallurgical Grade Silicon
  139. Catalytic Applications of Large Pore Sulfonic Acid-Functionalized SBA-15 Mesoporous Silica for Esterification
  140. One-photon Absorption Characterizations, Dipole Polarizabilities and Second Hyperpolarizabilities of Chlorophyll a and Crocin
  141. The Optical and Crystallite Characterization of Bilayer TiO2 Films Coated on Different ITO layers
  142. Topical Issue on Bond Activation
  143. Metal-mediated reactions towards the synthesis of a novel deaminolysed bisurea, dicarbamolyamine
  144. The structure of ortho-(trifluoromethyl)phenol in comparison to its homologues – A combined experimental and theoretical study
  145. Heterogeneous catalysis with encapsulated haem and other synthetic porphyrins: Harnessing the power of porphyrins for oxidation reactions
  146. Recent Advances on Mechanistic Studies on C–H Activation Catalyzed by Base Metals
  147. Reactions of the organoplatinum complex [Pt(cod) (neoSi)Cl] (neoSi = trimethylsilylmethyl) with the non-coordinating anions SbF6– and BPh4–
  148. Erratum
  149. Investigation on Two Compounds of O, O’-dithiophosphate Derivatives as Corrosion Inhibitors for Q235 Steel in Hydrochloric Acid Solution
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 30.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/chem-2018-0079/html?lang=en
Scroll to top button