Reactive Processing of a ZrB2/ZrC/ZrSi Ceramic Composite with a Controlled Oxygen Potential

被引：4
|
作者：
Maheswaraiah, Nischel [1 ]
Sandate, Alvaro V. [1 ]
Bronson, Arturo [1 ]
机构：
[1] Univ Texas El Paso, Dept Mech Engn, El Paso, TX 79968 USA
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2013年 / 10卷 / 02期
关键词：
BORON-CARBIDE; TEMPERATURE; SYSTEM; BORIDE; ZIRCONIUM; OXIDATION; EVOLUTION; PRESSURE; NITRIDE; HAFNIUM;
D O I：
10.1111/j.1744-7402.2012.02791.x
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：
A ZrSi liquid reacted with B4C in a graphite enclosure was configured to control the oxygen potential (1045kPa) to form a ZrB2 / ZrC / Zr Si ceramic composite. The graphite enclosure was placed in a temperature gradient with the hot zone at >2133K to react Zr Si with B4C and with the opposite end approximating 9331000K at the position of an aluminum melt. A ZrB2 / ZrC / Zr Si composite forms with the scanning-electron microscope (SEM), microstructures showing rectangular ZrB2 precipitates and hexagonally shaped ZrC precipitates embedded in a Zr Si matrix.
引用
收藏
页码：234 / 244
页数：11
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