Experimental and thermodynamic study of the hydrothermal oxidation behavior of Ti3SiC2 powders

被引：14
|
作者：
Zhang, H. B. [1 ]
Wang, X. [1 ]
Nickel, K. G. [1 ]
Zhou, Y. C. [2 ]
机构：
[1] Univ Tubingen, Inst Geosci, D-72074 Tubingen, Germany
[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
SCRIPTA MATERIALIA | 2008年 / 59卷 / 07期
关键词：
ceramics; hydrothermal oxidation; thermodynamics; carbides; corrosion;
D O I：
10.1016/j.scriptamat.2008.06.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The interaction of Ti3SiC2 with H2O at 50 MPa and 500-700 degrees C was investigated. Thermodynamic calculations were also employed to analyze the reactions. During hydrothermal oxidation, Ti and Si were selectively oxidatively extracted from Ti3SiC2, resulting in the formation of TiO2, SiO2 and amorphous-SP2-disordered carbon. This phenomenon was attributed to the unique bonding and structural characteristics of Ti3SiC2. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：746 / 749
页数：4
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