Thermodynamic of Synthesizing β -sialon Powders by Carbothermal Reaction and Nitration

Journal of Inorganic Materials

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Thermodynamic of Synthesizing β -sialon Powders by Carbothermal Reaction and Nitration

DU Xing-Hong; SUI Zhi-Tong; ZHANG Guang-Rong

School of Materials and Metallurgy; Northeastern University Shenyang 110006 China

Received:1997-08-25 Revised:1997-10-05 Published:1998-08-10 Online:1998-08-10

Abstract

Abstract: It was analyzed that the chemistry reaction occured in the process of carbothermal reaction and nitration of natural Kaolin. The influence of temperature and gas pressure on the product composition was studied in thermodynamics. The speed controlling step was discovered by combining the experimental results and theoretic calculation. The favourite temperature was discussed for acquiring more β -Sialon powders.

Key words: β -Sialon powders, reaction and nitration, thermodynamic process

CLC Number:

TF123

DU Xing-Hong,SUI Zhi-Tong,ZHANG Guang-Rong. Thermodynamic of Synthesizing β -sialon Powders by Carbothermal Reaction and Nitration[J]. Journal of Inorganic Materials.

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Thermodynamic of Synthesizing β -sialon Powders by Carbothermal Reaction and Nitration

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