摘要
基于含Y2O_(3)和ZrO_(2)的钠铝硅玻璃体系,研究了玻璃组分中Al_(2)O_(3)/Na2O摩尔比值(MAN)与SiO_(2)/Al_(2)O_(3)摩尔比值(MSA)对玻璃析晶性能的影响。研究结果表明,当MAN<1时,玻璃经热处理后表面析出钠霞石晶体;当MAN≥1时,玻璃热处理后析出钇锆酸盐纳米晶体,且此时微晶玻璃仍然具有不小于90%的高可见光透过率。对于固定MAN的玻璃,调整其MSA也能实现钇锆酸盐纳米晶的析出,且析出晶体尺寸随MSA增加而减小。随着热处理温度升高微晶玻璃样品中纳米晶体尺寸增大,维氏硬度也增大。
The influences of the molar ratios of Al_(2)O_(3)/Na 2O(M AN)and SiO_(2)/Al_(2)O_(3)(M SA)on the crystallization properties of the glass were studied in this work based on the sodium-aluminum-silicate glass system containing Y 2O_(3) and ZrO_(2).The results show that,when M AN<1,sodium nepheline crystals precipitate on the surface of the glass after heat treatment.When M AN>1,yttrium zirconate nanocrystals can be formed in the whole bulk glass,and the glass-ceramics can maintain a high visible light transmittance of 90%.For glass with fixed M AN,adjusting its M SA can also achieve the precipitation of yttrium zirconate nanocrystals,and the size of the precipitated crystals decreases as M SA increases.Furthermore,as the heat treatment temperature rises,the size of nanocrystals in glass-ceramic nanocrystals as well as Vickers hardness increases.
作者
田英良
韩金龙
徐博
温玉琳
李培浩
何峰
赵志永
TIAN Yingliang;HAN Jinlong;XU Bo;WEN Yulin;LI Peihao;HE Feng;ZHAO Zhiyong(Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China)
出处
《硅酸盐通报》
CAS
北大核心
2024年第2期710-718,共9页
Bulletin of the Chinese Ceramic Society
基金
北京市教委科研计划科技一般项目(KM202210005008)。
关键词
钠铝硅玻璃
析晶行为
热处理
钇锆酸盐纳米晶
透明微晶玻璃
维氏硬度
sodium-aluminum-silicate glass
crystallization behavior
heat treatment
yttrium zirconate nanocrystal
transparent glass-ceramics
Vickers hardness
作者简介
田英良(1969-),男,博士,教授。主要从事新型玻璃材料方面的研究。E-mail:tianyl@bjut.edu.cn;通信作者:赵志永,博士。E-mail:zhaozhiyong@bjut.edu.cn。
