Degradation of mechanical and electrical properties after long-term oxidation and corrosion of non-oxide structural ceramic composites

被引：11
|
作者：
Medri, V
Bracisiewicz, M
Krnel, K
Winterhalter, F
Bellosi, A
机构：
[1] Inst Sci & Technol Ceram, CNR, I-48108 Faenza, Italy
[2] JRC Petten, Petten, Netherlands
[3] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2005年 / 25卷 / 10期
关键词：
composites; corrosion; electrical properties; mechanical properties; oxidation;
D O I：
10.1016/j.jeurceramsoc.2004.12.002
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work summarizes the results related to the influence of the starting composition and of microstructure on properties degradation, due to oxidation and corrosion, relatively to the following structural ceramics: Si3N4-TiN, Si3N4-MoSi2, AlN-SiC-MoSi2, AlN-SiC.The effects of: (i) long-term oxidation in air (100h), in the temperature range 600-1500 degrees C and (ii) of long-term corrosion (400h) in acid orbasic aqueous solution at RT, 40 and 70 degrees C, on the electrical resistivity and mechanical strength of the composites are analysed and compared. The degradation of the properties are related to the characteristics of the surface and sub-surface damage after oxidation and corrosion treatments. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1723 / 1731
页数：9
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