摘要
为了研究合成β-锂霞石的最佳合成温度,对压成的生料块分别在最高合成温度为1310℃,1350℃,1400℃下进行合成,通过对比不同合成温度下得到的样品X射线衍射图,从而确定出采用直接烧结法合成β-锂霞石的最佳合成温度,并通过研究β-锂霞石的结构特征,解释了其负热膨胀机理。结果表明,在保温时间一定的条件下,合成温度越高,β-锂霞石的相对含量越少,合成β-锂霞石的最佳合成温度为1310℃。
In order to obtain the best synthesis temperature of β-eucryptite, samples were synthesized at 1310℃, 1350℃ and 1400℃ with pressed raw block. Their XRD patterns were compared, the best synthesis temperature for direct sintering of β-eucryptite determined, and the principle of negative thermal expansion explained by the study of the structure characteristics of β-eucryptite. The result shows that given the same holding time, the higher the synthesis temperature, the less the content of β-eucryptite and the best synthesis temperature for β-eucryptite is 1310℃.
出处
《中国陶瓷工业》
CAS
2008年第1期9-12,共4页
China Ceramic Industry
基金
辽宁省教育厅高校科研基金项目(编号:202063300)
关键词
锂霞石
直接烧结法
合成温度
合成工艺
负膨胀系数
eucryptite, method of direct sintering, synthesis temperature, synthesis technique, negative coefficient of thermal expansion
