TiO_2作为晶核剂的云母微晶玻璃的分相与析晶  

Phase Separation and Crystallization Behaviors of Fluormica Glass-Ceramic with Nucleation Agent of TiO_2

作　　者：程慷果[1] 万菊林[1] 梁开明[1] 

机构地区：[1]清华大学材料科学与工程系,100084

出　　处：《玻璃与搪瓷》1997年第5期7-10,54,共5页Glass & Enamel

摘　　要：Phase separation and crystallization behaviors of fluormica glass-ceramic with the nualeation agent of TiO2 were investigated by means of XRD,SEM,DTA and EDX.The results indieate that,during the heat treatment process,phase separation oceurred,i. c, adroplet phase rich in titanium appeared in the continual matrix glass.In the droplet phase , magnesium titanate crystals initially precipitated.Basing on these initial titanate erystals,flucrophlogopitc nuelei formed and grew.Thus a kind of fluormica glass-ceramic was prepared.Phase separation and crystallization behaviors of fluormica glass-ceramic with the nualeation agent of TiO2 were investigated by means of XRD,SEM,DTA and EDX.The results indieate that,during the heat treatment process,phase separation oceurred,i. c, adroplet phase rich in titanium appeared in the continual matrix glass.In the droplet phase , magnesium titanate crystals initially precipitated.Basing on these initial titanate erystals,flucrophlogopitc nuelei formed and grew.Thus a kind of fluormica glass-ceramic was prepared.

关 键 词：二氧化钛 晶核剂 云母 微晶玻璃 分相 析晶 

分 类 号：TQ171.733[化学工程—玻璃工业] TQ171.1[化学工程—硅酸盐工业]