Article
Licensed
Unlicensed Requires Authentication

A method for the formation of intergranular crystalline phases in liquid phase sintering

  • , and
Published/Copyright: October 10, 2014
Become an author with De Gruyter Brill
Submit Manuscript Author Information
International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 10

Abstract

During the liquid phase sintering process a liquid is formed, penetrates into the pores, causes rearrangement of particles and shrinkage and forms an amorphous and/or crystalline intergranular phase after firing which re-melts upon heating to the same sintering temperature. In this research a method is proposed to alter the intergranular phase to a phase with a melting point higher than the sintering temperature. The hypothesis is based on the shape of the phase diagram and precise control of particle sizes of liquid forming species. Results show that in the CaO–Al2O3 system a liquid is formed at 1 500 °C and it will then change to CaO. Al2O3 with a melting point of more than 1 600 °C. Differential scanning calorimetry analysis shows that the processes of formation of liquid and crystallization of concomitant crystalline phases occur obviously separately in this system. The system CaO–TiO2 also confirms the hypothesis, although more analytical evidence is needed for the latter.

Keywords: Liquid phase sintering; Particle size; Intergranular phase; Phase diagrams
* Correspondence address, Associate Professor Esmaeil Salahi, P.O. Box 14155-4777, Tehran, Iran, Tel.: +98 263 6204131-8, Fax: +98 263 6201888, E-mail:

References

[1] M.N.Rahaman: Sintering of Ceramics, CRC Press, Florida (2007). 10.1201/b15869Search in Google Scholar

[2] Y.Zhou, K.Hirao, Y.Yamauchi, S.Kanzaki: J. Eur. Ceram. Soc.22 (2002) 2689–2696. 10.1016/S0955-2219(01)00438-1Search in Google Scholar

[3] R.M.German: Liquid Phase Sintering, Plenum Press, New York (1985). 10.1007/978-1-4899-3599-1Search in Google Scholar

[4] R.M.German: Sintering Theory and Practice, John Willey, New York (1996).Search in Google Scholar

[5] F.K.Van Dijen, E.Mayer: J. Eur. Ceram. Soc.16 (1996) 413–420. 10.1016/0955-2219(95)00129-8Search in Google Scholar

[6] L.K.L.Falk: J. Eur. Ceram. Soc.17 (1997) 983–994. 10.1016/S0955-2219(96)00198-7Search in Google Scholar

[7] G.Magnani, L.Beaulardi, L.Pilotti: J. Eur. Ceram. Soc.25 (2005) 1619–1627. 10.1016/j.jeurceramsoc.2004.05.014Search in Google Scholar

[8] A.Can, M.Herrmann, D.S.McLachlan, I.Sigalas, J.Adler: J. Eur. Ceram. Soc.26 (2006) 1707–1713. 10.1016/j.jeurceramsoc.2005.03.253Search in Google Scholar

[9] M.F.Zawrah, N.M.Khalil: Ceram. Int.33 (2007) 1419–1425. 10.1016/j.ceramint.2006.04.022Search in Google Scholar

[10] J.J.Restrepo, D.R.Dinger, J.E.Funk: Ceram. Eng. Sci. Proc.14 (1993) 116. 10.1002/9780470314050.ch10Search in Google Scholar

[11] D.Y.Tuncel, E.Ozel: Ceram. Int.38 (2012) 1399–1407. 10.1016/j.ceramint.2011.09.019Search in Google Scholar

[12] A.M.Bernardin, D.S.de Medeiros, H.G.Riella: Mater. Sci. Eng. A427 (2006) 316–319. 10.1016/j.msea.2006.04.073Search in Google Scholar

Received: 2013-09-28
Accepted: 2014-02-17
Published Online: 2014-10-10
Published in Print: 2014-10-14

© 2014, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Phase equilibria studies of the “MnO”–Al2O3–SiO2 system in equilibrium with metallic alloy. Part 1: Development of the technique and determination of liquidus isotherms between 1 423 K and 1 523 K
  5. Casting process optimization of a bimetal wear-resistant block using liquid–solid processing
  6. Characteristics of melt convection during Kyropoulos sapphire crystal growth
  7. A method for the formation of intergranular crystalline phases in liquid phase sintering
  8. Corrosion resistance of laser treated titanium alloy with B4C particles at the surface
  9. Effect of Cr and Mo doping on the electrochemical properties of freeze-dried LiCoO2
  10. Inhibition properties and adsorption behavior of olive leaf extract on N80 carbon steel in CO2-saturated brine solution
  11. Tribological behavior of Fe3Al-60 wt.% Fe3AlC0.5 composite under air and vacuum conditions
  12. Improving the surface topography of mild steel with the burnishing process
  13. Additional small-scale boundary effects on free vibration of carbon nanotubes and their macroscopic energy meaning
  14. Aqueous soluble gold nanoparticle synthesis using polyethyleneimine and reduced glutathione
  15. DGM News
  16. Personal
https://doi.org/10.3139/146.111108
Keywords for this article
Liquid phase sintering; Particle size; Intergranular phase; Phase diagrams

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Phase equilibria studies of the “MnO”–Al2O3–SiO2 system in equilibrium with metallic alloy. Part 1: Development of the technique and determination of liquidus isotherms between 1 423 K and 1 523 K
  5. Casting process optimization of a bimetal wear-resistant block using liquid–solid processing
  6. Characteristics of melt convection during Kyropoulos sapphire crystal growth
  7. A method for the formation of intergranular crystalline phases in liquid phase sintering
  8. Corrosion resistance of laser treated titanium alloy with B4C particles at the surface
  9. Effect of Cr and Mo doping on the electrochemical properties of freeze-dried LiCoO2
  10. Inhibition properties and adsorption behavior of olive leaf extract on N80 carbon steel in CO2-saturated brine solution
  11. Tribological behavior of Fe3Al-60 wt.% Fe3AlC0.5 composite under air and vacuum conditions
  12. Improving the surface topography of mild steel with the burnishing process
  13. Additional small-scale boundary effects on free vibration of carbon nanotubes and their macroscopic energy meaning
  14. Aqueous soluble gold nanoparticle synthesis using polyethyleneimine and reduced glutathione
  15. DGM News
  16. Personal
Downloaded on 12.4.2026 from https://www.degruyterbrill.com/document/doi/10.3139/146.111108/html
Scroll to top button