组成对钠铝硅玻璃中钇锆酸盐纳米晶析晶性能的影响  

Effect of Composition on Crystallization Properties of Yttrium Zirconate Nanocrystals in Sodium-Aluminum-Silicate Glass

作　　者：田英良[1] 韩金龙 徐博[1] 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)

机构地区：[1]北京工业大学材料与制造学部,北京100124

出　　处：《硅酸盐通报》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)。

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.

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 

分 类 号：TQ171[化学工程—玻璃工业]