不同酸对胶凝过程及莫来石晶须形成的影响  

EFFECTS OF DIFFERENT ACIDS ON GELATIFICATION AND FORMATION OF MULLITE WHISKERS

作　　者：赵东亮[1] 张玉军[1] 龚红宇[1] 张涛[1] 

机构地区：[1]山东大学,济南250061

出　　处：《中国陶瓷》2007年第10期17-18,13,共3页China Ceramics

基　　金：国家自然科学基金项目资助;编号:50542031;国防科技重点实验室基金项目资助;编号:5146005105JW2403

摘　　要：以工业纯铝溶胶和硅溶胶为原料,采用溶胶-凝胶工艺制备了莫来石晶须。研究了不同酸对胶凝过程及莫来石晶须形成的影响。结果说明,采用柠檬酸调节溶胶的pH值可以缩短胶凝时间,制备出形貌规则、长径比大的莫来石晶须。The study is on synthesis of mullite whiskers by sol-gel method, using industrial alumina sol and silica sol as raw materials. The effects of different acids on gelatification and formation of mullite whiskers were studied. When using citric acid to adjust pH value of the system, the time of gelatification could be reduced, as well as the mullite whiskers with good appearance and high aspect ratio were obtained.

关 键 词：莫来石晶须 溶胶-凝胶法 柠檬酸 

分 类 号：TQ174.41[化学工程—陶瓷工业]