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Dependence of Silicon Carbide Product Morphology on the Degree of Mechanical Activation
Author(s) -
Shaw Leon L.,
Yang Zhenguo,
Ren Ruiming
Publication year - 2002
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2002.tb00157.x
Subject(s) - whiskers , silicon carbide , morphology (biology) , materials science , reactivity (psychology) , whisker , carbon fibers , chemical engineering , carbide , carbothermic reaction , degree (music) , silicon , composite material , metallurgy , composite number , medicine , genetics , alternative medicine , physics , pathology , acoustics , engineering , biology
Mechanical activation before carbothermic reduction can substantially enhance the formation of SiC from SiO 2 and carbon mixtures. However, the morphology (e.g., particles or whiskers) of SiC formed from mechanically activated SiO 2 and carbon mixtures is dependent of the degree of mechanical activation and the condition of the subsequent carbothermic reduction. These phenomena are investigated and rationalized based on the increased reactivity of the reactants and SiC formation mechanisms.