Oxidation behavior of YAG-ZrB2 ceramics prepared by spark plasma sintering

被引：0
|
作者：
Song, Jie-Guang [1 ,2 ]
Du, Da-Ming [1 ]
Ju, Yin-Yan [1 ]
Li, Yang-Liang [1 ]
Li, Shi-Bin [1 ,2 ]
Ji, Gang-Chang [2 ]
机构：
[1] Jiujiang Univ, Sch Mech & Mat Engn, Jiujiang 332005, Peoples R China
[2] Jiujiang Univ, Jiujiang Key Lab Green Remfg, Jiujiang 332005, Jiangxi, Peoples R China
来源：
JOURNAL OF CERAMIC PROCESSING RESEARCH | 2010年 / 11卷 / 04期
关键词：
ZrB2; YAG; Ceramics; Oxidation; High temperature; DIBORIDE-SILICON CARBIDE; ALUMINUM-GARNET YAG; ZIRCONIUM; DISPERSIBILITY; BORIDE;
D O I：
暂无
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：
ZrB2 and VAG are widely applied because of some excellent properties, but ZrB2 is easily oxidized in high-temperature air. To make ZrB2 ceramics have better oxidation resistance, high-density YAG-ZrB2 ceramics were prepared. The oxidation behavior of YAG-ZrB2 ceramics is investigated at different temperatures. The results indicate that the enhanced weight change differs according to the temperature range, slightly in the temperature 900-1000 degrees C, sharply from 1100-1300 and smoothly above 1300 degrees C. The weight change rate of YAG-ZrB2 ceramics is increased by prolonging the oxidation time, but the weight change rate of YAG-ZrB2 ceramics is gradually reduced. The oxidation layer is porous as compared to the YAG-ZrB2 ceramics layer.
引用
收藏
页码：494 / 497
页数：4
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