电熔莫来石制备氧化锆增韧莫来石陶瓷的改性  

STUDY ON TOUGHENED ZIRCONIA MULLITE MADE FROM ELETRICALLY FUSED MULLITE

作　　者：成战胜[1] 行春丽[1] 

机构地区：[1]焦作大学化学工程系

出　　处：《郑州轻工业学院学报》1998年第3期19-22,共4页Journal of Zhengzhou Institute of Light Industry（Natural Science）

摘　　要：以电溶莫来石为原料制备氧化锆增韧莫来石陶瓷，因原料中含有微量的Ｋ，Ｎａ等碱金属离子而使得陶瓷力学性能在高温下不能呈现增长的趋势．添加２．６％重量的氧化硼可大大减弱这些杂质离子的负面影响。Toughened zirconia mullite ceramics are prepared either with eletrically fused mullite or with high purity mullite as raw material.The former is characterized by a decrease of ceramic properties at hightemperature becuase of some alkili metal(K +,Na +,etc),impurites in the raw material.The properties of the ceramics can be improved only by inhibiting the action of the impurities.Add 2.6% boron oxide to the ceramics and the action of the impurities is weakened.Therefor the mechanical properties for the ceramics are enhanced.

关 键 词：原料杂质 氧化锆陶瓷 力学性质 莫来石陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]