期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 298, 期 1-2, 页码 174-178出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0921-5093(00)01281-8
关键词
reaction; aluminum; Ti3SiC2; temperature range
In this work, we report on the reaction of molten aluminum with Ti3SiC2 in the 800-1000 degreesC temperature range. The reaction kinetics are linear and follow the relation: K-0 (m s(-1)) = 7.16 exp - (207 kJ/RT). The reaction layer consists of two interconnected or interpenetrating networks of TiC0.67 and molten Al. The samples preserve their original shape and dimensions after the reaction. Some TiC particles, as well as TiAl3 platelets are sometimes observed in the Al bath. The rate-limiting step is believed to be the dissolution of the Si from the Ti3SiC2 into the molten Al. (C) 2001 Elsevier Science B.V. All rights reserved.
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