Oxidation of ZrB2/ZrO2 and ZrB2/ZrO2/SiC Ceramics

被引：1
|
作者：
Yuan Huiping [1 ]
Song Jianrong [1 ]
Li Junguo [1 ]
Shen Qiang [1 ]
Zhang Lianmeng [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
ADVANCED SYNTHESIS AND PROCESSING TECHNOLOGY FOR MATERIALS | 2009年 / 66卷
关键词：
ZrB2; composite; SPS; oxidation; ZIRCONIUM DIBORIDE; HIGH TEMPERATURES; ZRB2; CARBIDE;
D O I：
10.4028/www.scientific.net/AMR.66.61
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this study was to investigate the oxidation of ZrB2/ZrO2 (ZZ) and ZrB2/ZrO2/SiC (ZZS) ceramics. The ceramics were fabricated by spark plasma sintering (SPS) at 1900 degrees C and exposed to ten-minute oxidation cycles in stagnant air at 1200 degrees C in a box furnace with molybdenum disilicide heating elements. Results of relative density, surface phase change and the rate of weight growth show that the addition of ZrO2 improved the sintering properties of ZrB2 ceramics. While the resistance to oxidation declined with the increase content of ZrO2. And the addition of SiC improved the resistance to oxidation of ZrB2/ZrO2 composites significantly.
引用
收藏
页码：61 / 64
页数：4
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