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Synthesis and Reaction Mechanism of Ti 3 SiC 2 by Mechanical Alloying of Elemental Ti, Si, and C Powders
Author(s) -
Li ShiBo,
Zhai HongXiang
Publication year - 2005
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.1551-2916.2005.00417.x
Subject(s) - materials science , titanium , silicon carbide , carbide , ball mill , metallurgy , titanium carbide , reaction mechanism , chemical engineering , silicon , chemistry , catalysis , biochemistry , engineering
Formation of titanium silicon carbide (Ti 3 SiC 2 ) by mechanical alloying (MA) of Ti, Si, and C powders at room temperature was experimentally investigated. A large amount of granules less than 5 mm in size, consisting of Ti 3 SiC 2 , smaller TiC particles, and other silicides, have been obtained after ball milling for only 1.5 h. The effect of excess Si in the starting powders on the formation of Ti 3 SiC 2 was studied. The formation mechanism of Ti 3 SiC 2 was analyzed. It is believed that a mechanically induced self‐propagating reaction is ignited during the MA process. A possible reaction mechanism was proposed to explain the formation of the final products.