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个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:哈尔滨工业大学
学位:博士
所在单位:材料科学与工程学院
学科:航空宇航制造工程. 飞行器设计. 材料学. 航空航天力学与工程
办公地点:综合实验1号楼201B室
联系方式:gdshi@dlut.edu.cn
电子邮箱:gdshi@dlut.edu.cn
The oxidation behaviors of a ZrB2-SiC-ZrC ceramic
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论文类型:期刊论文
发表时间:2011-03-01
发表刊物:SOLID STATE SCIENCES
收录刊物:EI、SCIE
卷号:13
期号:3
页面范围:534-538
ISSN号:1293-2558
关键字:ZrB2-based ceramic; Microstucture; Oxidation kinetics
摘要:The specimen of a ZrB2-SiC-ZrC ceramic was heated by the electrical resistance heating and the temperature of the specimen increased linearly to 1750 degrees C within 40s. ZrB2-SiC-ZrC ceramic was oxidized in air for 30 min and the microstructure of oxide layer was investigated and discussed. The analysis of the SEM observations combined with EDS confirmed that the layered structure consisted of: (1) a SiO2-rich glass layer; (2) a thin layer of ZrO2-SiO2; (3) a layer of ZrO2 and/or ZrB2 from which SiC had been depleted; (4) unaffected ZrB2-SiC-ZrC ceramic. Furthermore, the oxidation kinetics of ZrB2-SiC-ZrC ceramic was investigated in detail. (C) 2010 Elsevier Masson SAS. All rights reserved.