Startseite Effect of ball milling time on the synthesis of nanocrystalline merwinite via mechanical activation and heat treatment
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Effect of ball milling time on the synthesis of nanocrystalline merwinite via mechanical activation and heat treatment

  • Masoud Hafezi , Ali Nadernezhad , Maryam Mohammadi , Hadi Barzegar und Hossein Mohammadi
Veröffentlicht/Copyright: 8. Mai 2014
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 105 Heft 5

Abstract

Nanocrystalline merwinite was successfully synthesized by mechanical activation of a mixture of magnesium hydroxide, calcium oxide and silica gel powders followed by heat treatment. The phase development and various physical properties were investigated as a function of milling time using X-ray diffraction, scanning electron microscopy, simultaneous thermal analysis, particle size analysis and transmission electron microscopy. The results showed that formation of merwinite in annealed powders was enhanced by increasing the milling time. Nanocrystalline merwinite powder with an average crystallite size of about 36 nm was obtained after 30 hours of ball milling and subsequent annealing in 900 °C for 1 hour.

Keywords: Merwinite; Mechanical activation; X-ray techniques; Phase development
* Correspondence address, Assistant Professor Masoud Hafezi, Biomaterials Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran, Tel.: +98-2636280040-9, Fax: +98-2636201888, E-mail:

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Received: 2013-10-20
Accepted: 2013-11-27
Published Online: 2014-05-08
Published in Print: 2014-05-13

© 2014, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Review
  4. Research trends in microwave dielectrics and factors affecting their properties: A review
  5. Original Contributions
  6. Efficiency and work performance of TiNi alloy undergoing B2 ↔ R martensitic transformation
  7. Fabrication of Gasar made from Cu-24 wt.% Mn alloy
  8. Effect of intermediate frequency electromagnetic field on the solidification structure and mechanical properties of direct chill cast Al-8 wt.%Si alloy
  9. Effect of Ni-based conversion coating and Ni–P electroless plating on the bonding process of pure Al and AZ31 alloy
  10. Effect of ball milling time on the synthesis of nanocrystalline merwinite via mechanical activation and heat treatment
  11. Structural and magnetic properties of Fe–Al2O3 soft magnetic composites prepared using the sol–gel method
  12. Improved dielectric performance of barium strontium titanate multilayered capacitor by means of pulsed laser deposition and slow injection sol–gel methods
  13. Effect of heat treatment on the slurry erosion resistance of high strength steel DP980
  14. Development of biomimetic gelatin–chitosan/hydroxyapatite nanocomposite via double diffusion method for biomedical applications
  15. Short Communications
  16. Effects of rolling rate on microstructure and mechanical properties of Mg sheets
  17. Effect of post-weld heat treatment on dissimilar friction stir welded AA6063 and A319 aluminium alloys
  18. Dielectric and magnetic properties of Ba0.8Sr0.2TiO3 – Y3Fe5O12 – YFeO3 composites
  19. Microwave-assisted modulated synthesis of zirconium-based metal–organic framework (Zr-MOF) for hydrogen storage applications
  20. DGM News
  21. DGM News
https://doi.org/10.3139/146.111048
Schlagwörter für diesen Artikel
Merwinite; Mechanical activation; X-ray techniques; Phase development

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Review
  4. Research trends in microwave dielectrics and factors affecting their properties: A review
  5. Original Contributions
  6. Efficiency and work performance of TiNi alloy undergoing B2 ↔ R martensitic transformation
  7. Fabrication of Gasar made from Cu-24 wt.% Mn alloy
  8. Effect of intermediate frequency electromagnetic field on the solidification structure and mechanical properties of direct chill cast Al-8 wt.%Si alloy
  9. Effect of Ni-based conversion coating and Ni–P electroless plating on the bonding process of pure Al and AZ31 alloy
  10. Effect of ball milling time on the synthesis of nanocrystalline merwinite via mechanical activation and heat treatment
  11. Structural and magnetic properties of Fe–Al2O3 soft magnetic composites prepared using the sol–gel method
  12. Improved dielectric performance of barium strontium titanate multilayered capacitor by means of pulsed laser deposition and slow injection sol–gel methods
  13. Effect of heat treatment on the slurry erosion resistance of high strength steel DP980
  14. Development of biomimetic gelatin–chitosan/hydroxyapatite nanocomposite via double diffusion method for biomedical applications
  15. Short Communications
  16. Effects of rolling rate on microstructure and mechanical properties of Mg sheets
  17. Effect of post-weld heat treatment on dissimilar friction stir welded AA6063 and A319 aluminium alloys
  18. Dielectric and magnetic properties of Ba0.8Sr0.2TiO3 – Y3Fe5O12 – YFeO3 composites
  19. Microwave-assisted modulated synthesis of zirconium-based metal–organic framework (Zr-MOF) for hydrogen storage applications
  20. DGM News
  21. DGM News
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