Preperation and Properties of Sialon Bonded SiC Material

Journal of Inorganic Materials

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Preperation and Properties of Sialon Bonded SiC Material

DU Xinghong; SUI Zhitong; ZHANG Guangrong; ZHANG Weimin

School of Materials and Metallurgy; Northeastern University Shenyang 110006 China

Received:1997-04-28 Revised:1997-06-02 Published:1997-12-20 Online:1997-12-20

Abstract

Abstract: β-sialon powders (Si_6-z Al_zO_zN_8-z with z=3.0) were synthesized by carbothermal reductionand nitriding reaction. A sample of sialon bonded SiC was sintered at 1580～1640℃. Bulk densityof the sintered body was 2.26g/cm³, three pomt bending strength was 42.0MPa. The bendingstrength was still remained when quenching the sintered body at 1200℃ to cold water (15℃) 10times. Weight loss in flowing air at 1350℃ was less than 0.035%cm^-2.

Key words: Sialon bonded SiC, carbothemal reduction and nitriding reaction, sintering, mechanical and thermal properties

DU Xinghong,SUI Zhitong,ZHANG Guangrong,ZHANG Weimin. Preperation and Properties of Sialon Bonded SiC Material[J]. Journal of Inorganic Materials.

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Preperation and Properties of Sialon Bonded SiC Material

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