摘要
ＣａＯ－Ｐ_２Ｏ_５物质的量比为 １的钙磷酸盐玻璃，经７４０℃和８００℃热处理后发生分相和析晶。液滴状分相存在于整个样品范围内，而析晶则是从表面开始，析晶层厚度随热处理温度的提高而增大，析晶不是分相作用的结果。由于析出的晶体δ－Ｃａ（ＰＯ_３）_２的密度大于基础玻璃，从而导致析出的晶体与周围基质玻璃间出现空隙。
Pnase separation and crystallization occurr in CaO - P_2O_5 glass, (CaO) : (P_2O_5) = 1, which was heat-treated at 740, 800℃ for 1 h. Crystallization of δ-Ca (PO_3)2 starts from the surface of the samples and has no relation with the phase separation. Voids resulted from the density difference be tween crystal and basic glass are observed.
出处
《山东建材学院学报》
2000年第1期7-8,共2页
Journal of Shandong Institute of Building Materials
关键词
玻璃
分相
析晶
钙磷酸盐玻璃
CaO - P_2O_5 glass
phase separation
crystal lization
