OXIDATION BEHAVIOR OF MULLITE-SIC COMPOSITES

被引：23
|
作者：
OSENDI, MI
机构：
[1] Intituto Cerámica y Vidrio, CSIC, Arganda del Rey, Madrid
来源：
JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 08期
关键词：
D O I：
10.1007/BF00575389
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation kinetics of three mullite-SiC composites were studied. The materials were all processed with the same amount of SiC, 10% by volume; in two of the composites the second phase was added as whiskers, and in the third as powders. The sintered composites were exposed to high temperatures (1200 to 1500 ° C) during variable time periods (maximum 122 h) under the oxidizing furnace atmosphere. The nature of the reaction layer formed has been analysed specifying the oxidation rate constants for each composite. The influence on the bend strength of the composites for one of the isothermal oxidizing treatments has also been measured. © 1990 Chapman and Hall Ltd.
引用
收藏
页码：3561 / 3565
页数：5
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