摘要
本文以高岭土、蒙脱石、叶腊石为原料，将粘土矿物与碳混合，加入适量的添加剂，在Ｎ２气氛１４００°Ｃ下，经４ｈ碳热还原氮化合成Ｓｉａｌｏｎ，产物经ＸＲＤ、ＸＰＳ、ＥＰＭＡ等分析，结果表明：用不同粘土矿物合成Ｓｉａｌｏｎ，矿物的Ａｌ／Ｓｉ比与碳的含量直接影响最终的合成产物，但主晶相仍为Ｚ＝３的β′－Ｓｉａｌｏｎ。
n this paper,the natural raw materials such as Kaolin,Bentoniteand Pyro phyllite were used,β-Sialon was synthesized by adding adequatemuti-additives in the mixture of clay and carbon black through carbothermal reduction-nitrodation reaction at 1400°C for 4 hours in nitrogen atmosphere.It is shown that the products are directly effected by Al/Si of clays andcarbon contents through XRD,XPS,EPMA techniques,but the main phase of the products is still β′-Sialon with Z=3.
出处
《中国陶瓷》
CAS
CSCD
北大核心
1998年第1期16-19,共4页
China Ceramics
