Synthesis and Reaction Mechanism of Ti3SiC2 by Mechanical Alloying of Elemental Ti, Si, and C Powders

Formation of titanium silicon carbide (Ti3SiC2) 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 Ti3SiC2, smaller TiC particles, and other silicides, have been obtained after bal...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2005-08, Vol.88 (8), p.2092-2098
Main Authors: Li, Shi-Bo, Zhai, Hong-Xiang
Format: Article
Language:English
Subjects:
Chemistry
Cross-disciplinary physics: materials science
rheology
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
Inorganic chemistry and origins of life
Materials science
New materials: theory, design, and fabrication
Other materials
Physics
Preparations and properties
Specific materials
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Summary:Formation of titanium silicon carbide (Ti3SiC2) 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 Ti3SiC2, 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 Ti3SiC2 was studied. The formation mechanism of Ti3SiC2 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.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2005.00417.x