EFFECT OF SI3N4 ADDITIONS ON THE FORMATION OF SIC WHISKERS FROM RICE HUSKS

被引：34

作者：

KRISHNARAO, RV

GODKHINDI, MM

机构：

[1] Department of Metallurgical Engineering, Indian Institute of Technology, Kharagpur

来源：

CERAMICS INTERNATIONAL | 1992年 / 18卷 / 03期

关键词：

D O I：

10.1016/0272-8842(92)90094-T

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：

Attempts have been made to quantitatively correlate the effect of silicon nitride additions on the conversion of rice husk black ash to silicon carbide (particles and whiskers) during vacuum pyrolysis in the temperature range of 1200 to 1400-degrees-C. Addition of Si3N4 was found to increase the yield of SiC whiskers and to reduce the amounts of SiC particles and excess carbon. At 1400-degrees-C the mixtures with 50 and 60 wt% of Si3N4 were found to yield a mass of SiC(w) without any free carbon and with about 5 wt% of unreacted SiO2.

引用

页码：185 / 191

页数：7

共 28 条

[1] MICROSTRUCTURE OF FIBER AND PARTICULATE SIC IN 6061-AL COMPOSITES [J].