摘要
利用溶胶-凝胶法制得Fe2O3-CaO-SiO2系基础玻璃,根据DSC曲线制得Fe2O3-CaO-SiO2系微晶玻璃.晶化后的微晶玻璃中析出主晶相为磁铁矿(Fe3O4),同时析出次晶相硅灰石(CaSiO3)和少量赤铁矿(Fe2O3)及玻璃相.玻璃相中含有大量细小的柱状晶体、球状晶体,属于三维析晶.不同升温速率下得到的微晶玻璃表面形貌是不同的.在2℃/min升温速率下,晶粒呈柱状或球状;在15℃/min升温速率下,晶粒有的呈片状,有的呈柱状.
The Fe2O3 - CaO - SiO2 glasses were prepared by sol - gel method.Fe2O3 - CaO - SiO2 glass - ceramics were made according to DSC curve. The crystalline phases of the glass - ceramics were magnetite, wollastonite and minor hematite. A lot of fine columned, global crystallization was existed in glass phases, which were three direction crystallizations. Surface shape of the glass- ceramics wasdifferent at different heating rates. The crystalline was columned or global at 2℃/min heating rate. The crystalline was columned or sheet at 15℃/min hearingrate.
出处
《佳木斯大学学报（自然科学版）》
CAS
2007年第2期196-198,共3页
Journal of Jiamusi University：Natural Science Edition
