期刊
COMBUSTION EXPLOSION AND SHOCK WAVES
卷 42, 期 5, 页码 543-548出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1007/s10573-006-0086-7
关键词
solid phase combustion; chemical activation; silicon carbide; silicon nitride
It is established that Si3N4-SiC composites with a mass content of SiC 5-60% and a dominating content of the,beta-modification of silicon nitride can be produced by interaction of the components in the Si-C-N-2 system in the combustion regime. It is found that the fraction Of alpha-Si3N4 can be increased by diluting the starting mixture with the end products, but this leads to the occurrence of a certain amount of unreacted silicon in the products. It is shown that the use of chemical activation allows one to perform a single-stage synthesis of Si3N4-SiC composites with any contents of the individual components (from 0 to 100%), including pure carbide silicon.
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