Effect of Sintering Additives on the Nitridation and Densification Behavior of Si—SiC Composite

Effect of Sintering Additives on the Nitridation and

Densification Behavior of Si—SiC Composite

K.Amoako－Appiagyei;SooYoungLee;等

【期刊名称】《中国耐火材料：英文版》 【年(卷),期】1999(008)001

【摘要】Most of the thermo-mechanical properties of reaction bonded silicon nitride,including a second phase such as SiC depend on the final denstiy and the grain boundary glass phase of the sintered material .Thus it is necessary to know the sintering aid system most effective for the Si0-SiC compostie system ,Sintering experiments carried out using different combinations of sintering aids has indicated that two combinations,i.e.,(a) yttria with alumina and (b) yttia with aluminium nitride are effective sintering aid systems for the reation bonded Si-SiC composites.Adensity of 98.5% theoretical was obtained with yttria and aluminium nitride system. 【总页数】5页(25-29)

【关键词】烧洁添加剂;氮化;渗氮作用;增浓作用;SiC;增稠作用;Si;碳化砖;耐火复合材料

【作者】K.Amoako－Appiagyei;SooYoungLee;等 【

作

者

单

位

】

KyungnamUniversity,MasanCity,Korea631701;KyungnamUniversity,MasanCity,Korea631701