热处理制度对RCS系着色微晶玻璃析晶性能的影响(英文)  

Influence of Heat Treatment on Crystallization Properties of Colored RcS Glass-Ceramics

作　　者：李宏[1] 武艳萍[1] 陈方禕[1] 程金树[1] 

机构地区：[1]武汉理工大学,硅酸盐材料工程教育部重点实验室,武汉430070

出　　处：《硅酸盐学报》2011年第1期143-146,共4页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(50472039);湖北省自然科学基金(2005-ABA011)资助项目

摘　　要：采用不同热处理制度对掺加硫硒化镉的R2O–CaO–SiO2(RCS,R为Na,K)系玻璃进行显色处理得到着色微晶玻璃。通过X射线衍射、场发射扫描电镜及紫外可见分光光度计等测试分析手段研究不同热处理制度对RCS系着色微晶玻璃析晶性能的影响。结果表明:在700℃进行显色热处理,微晶玻璃的主晶相为柱状的硬硅钙石[Ca6Si6O17(OH)2];在750℃和800℃进行显色热处理,微晶玻璃的主晶相为放射状的硅碱钙石(K2Na4Ca5Si12O30F4)和α-硅碱钙石[K3Na3Ca5Si12O30F3(OH)1H2O];随着显色温度的提高和显色时间的延长,微晶玻璃的颜色由黄色逐步向红色转变,微晶玻璃的截止波长向可见光谱的长波方向移动。The colored R2O–CaO–SiO2（RCS,R = Na,K） glass-ceramics were prepared through different heat treatment schedules.The influence of heat treatment on crystallization properties of the colored RCS glass-ceramics was investigated by X-ray diffraction,field emission scanning electron microscopy and UV-Visible spectrophotometer.The results indicate that the main crystalline phase of the glass-ceramics is columnar xonotlite [Ca6Si6O17（OH）2] at 700 ℃,and radial canasite（K2Na4Ca5Si12O30F4） and frankamenite [K3Na3Ca5Si12O30F3（OH）1H2O] at 750 and 800 ℃.The color of the glass-ceramics changed from yellow to red and the cut-off wave-length shifted to a longer wavelength with the increase of heat treatment temperature and holding time.

关 键 词：R2O–CaO–SiO2 着色微晶玻璃 析晶性能 热处理 硫硒化镉 

分 类 号：TQ171.73[化学工程—玻璃工业]