Effect of Auxiliary Gases on Combustion Synthesis of Si3N4

材料科学技术（英文）, 2005, 21(5): 701-704.

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1.Lab of Special Ceramics and P/M, University of Science and Technology Beijing, Beijing 100083, China

2.Lab of Special Ceramics and P/M, University of Science and Technology Beijing, Beijing 100083, China

3.Lab of Special Ceramics and P/M, University of Science and Technology Beijing, Beijing 100083, China

4.Lab of Special Ceramics and P/M, University of Science and Technology Beijing, Beijing 100083, China

基金项目: National High-Tech Research and Development Program of China ("863" Program)(2001AA333080)

Effect of Auxiliary Gases on Combustion Synthesis of Si3N4

Keywords： Combustion synthesis

This paper presents results of combustion synthesis (Self-Propagating High Temperature Synt hesis, SHS) of Si3N4under nitrogen with argon, hydrogen or ammonia. Higher percentages of α-Si3N4 content were obtained in large size cakes in SHS with hydrogen and ammonia than those with argon. Effect of the auxiliary gases for combustion synthesis of Si3N4 on α phase content, on phase transformation of α-Si3N4 toβ-Si3N4 in SHS Si3N4 and on oxygen content in SHS Si3N4 were investigated.

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Effect of Auxiliary Gases on Combustion Synthesis of Si3N4

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