A simple polymeric precursor strategy for the syntheses of complex zirconium and hafnium-based ultra high-temperature silicon-carbide composite ceramics

被引：30

作者：

Guron, Marta M. ^{[1
]}

Kim, Myung Jong ^{[1
]}

Sneddon, Larry G. ^{[1
]}

机构：

[1] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2008年 / 91卷 / 05期

关键词：

D O I：

10.1111/j.1551-2916.2007.02217.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：

Pyrolyses of chemical precursor systems composed of zirconium or hafnium powders dispersed into blends of the polymethylcarbosilane and poly(norbornenyldecaborane) preceramic polymers provide simple efficient routes to new types of ZrB2/ZrC/SiC and HfB2/HfC/SiC composites. Further extensions of this method should now allow the syntheses of a wide variety of complex potential ultra high-temperature zirconium- and hafnium-based composite materials with controllable tuning of their compositions, microstructures, and/or stabilities.

引用

页码：1412 / 1415

页数：4

共 29 条

[1]

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[2] Chemical reactivities of hafnium and its derived boride, carbide and nitride compounds at relatively mild temperature [J].