摘要
以CaO–Al2O3–SiO2玻璃为基础,以CuO+Cr2O3为着色剂,通过烧结法制备了绿色微晶玻璃,采用X射线衍射、扫描电子显微镜、色度计、热膨胀仪和硬度计研究了Al2O3、Na2O和ZnO含量对绿色微晶玻璃晶相结构、色度及性能的影响。结果表明:在所研究的成分范围内,Al2O3、ZnO和Na2O含量的变化不改变绿色微晶玻璃的主晶相,但随着Al2O3加入量的增加微晶相减少,热膨胀系数和密度减小,显微硬度增大,颜色向褐绿色转变;随着Na2O含量的增加,微晶玻璃的颜色逐渐纯正,光泽度增加;随着ZnO含量的增加,微晶玻璃的色度不变,但表面光泽度降低。
Green glass-ceramics were prepared by sintering method based on CaO–Al2O3–SiO2 system glass,using CuO＋Cr2O3 as colorants.Impact of the contents of Al2O3,Na2O and ZnO in green glass-ceramics on crystal structure,chromaticity and properties was studied via X-ray diffraction,scanning electron microscope,colorimeter,dilatometer and hardness tester.The results indicate that the main crystal phase of green glass-ceramics doesn＇t change with the contents of Al2O3,Na2O or ZnO in the range of the composi-tion,but the microcrystalline phase,the thermal expansion coefficient decrease,micro-hardness increase,the color changes from bright green to brownish-green with the increasing of Al2O3.The color of glass-ceramics gradually becomes bright green and the sur-face glossiness increases with the increasing of Na2O.The chromaticity of glass-ceramics doesn＇t change,but the surface glossiness decrease with the increasing of ZnO.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2011年第1期99-103,共5页
Journal of The Chinese Ceramic Society
关键词
微晶玻璃
着色
相结构
glass-ceramics
coloring
crystal structure
