不同K值含Ag碱硼硅酸盐玻璃的析晶行为研究  

Crystallization Behavior of Ag-Doped Alkali Borosilicate Glasswith Different K Values

作　　者：王良[1] 冯晋阳[1] 李博涵 赵修建[1] 马晓 伍冬华 何勇涛 胡宇浩 WANG Liang;FENG Jinyang;LI Bohan;ZHAO Xiujian;MA Xiao;WU Donghua;HE Yongtao;HU Yuhao(State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China;Yangtze Optical Fibers and Cable Joint Stock Limited Company,Wuhan 430074,China)

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070 [2]长飞光纤光缆股份有限公司,武汉430074

出　　处：《硅酸盐通报》2024年第8期3045-3052,共8页Bulletin of the Chinese Ceramic Society

基　　金：湖北省先进材料领域重点研发计划(2020BAB061)。

摘　　要：基于K_(2)O-B_(2)O_(3)-SiO_(2)三元体系玻璃,在固定玻璃组成参数R值的基础上,设计了不同玻璃组成参数K值含Ag碱硼硅酸盐玻璃。采用熔融法制备了基础玻璃,在析晶温度范围内经过一步法热处理,所有样品内部都析出了球形的AgCl晶粒。研究表明,玻璃组成参数K值对含Ag碱硼硅酸盐玻璃体内AgCl晶粒的析出产生了明显影响。对于设计制备的弱分相体系玻璃,玻璃组成参数K值的改变可以影响玻璃网络的聚合度,但玻璃的分相并不是影响玻璃析晶的主要因素。通过玻璃结构分析,玻璃组成参数K值的改变能够对ZrO_(2)在玻璃网络中的存在状态产生影响,进而降低ZrO_(2)在玻璃网络中的溶解度,增加了基础玻璃中的成核位点,从而对含Ag碱硼硅酸盐玻璃的AgCl析晶行为产生重要影响。Based on the K_(2)O-B_(2)O_(3)-SiO_(2) ternary system glass,different glass composition parameters K values of Ag-doped alkali borosilicate glass were designed based on a fixed glass composition parameter R values.The base glass was prepared by melting method,and a one-step heat treatment within the crystallization temperature range resulted in the precipitation of spherical AgCl crystallites in all samples.The study indicates that the different glass composition parameters K values have a significant impact on the precipitation of AgCl crystallites within the Ag-doped alkali borosilicate glass.For the designed weak phase separation system glass,the variation of the glass composition parameter K values can affect the network polymerization of the glass,but the phase separation of the glass is not the main factor affecting the glass crystallization.Through glass structure analysis,the change in the glass composition parameter K values can affect the existence state of ZrO_(2) in the glass network,thereby reducing the solubility of ZrO_(2) in the glass network,increasing the nucleation sites in the base glass,and thus exerting a significant influence on the AgCl crystallization behavior in the Ag-doped alkali borosilicate glasses.

关 键 词：碱硼硅酸盐玻璃 AGCL 玻璃组成参数 K值 玻璃析晶 玻璃分相 

分 类 号：TQ171[化学工程—玻璃工业]