ZrO2/P2O5复合晶核剂对LiO2-Al2O3-SiO2玻璃微晶化和力学性能影响
Effect of ZrO2/P2O5 Nucleating Agent on the Microcrystallization and Mechanical Properties of LiO2-Al2O3-SiO2 Glass
韩韬 1王衍行 1李现梓 1杨鹏慧 1徐驰 1祖成奎1
作者信息
- 1. 中国建筑材料科学研究总院有限公司建材行业特种玻璃制备与加工重点实验室,北京 100024
- 折叠
摘要
为提高LiO2-Al2O3-SiO2系玻璃的性能,采用熔融法制备了 ZrO2/P2O5复合晶核剂的LiO2-Al2O3SiO2系玻璃,通过扫描电镜(SEM),差热分析(DSC),X射线衍射(XRD)等测试方法研究了不同晶核剂对LiO2-Al2O3-SiO2系玻璃微晶化和力学性能的影响.研究表明采用复合晶核剂玻璃可降低析晶活化能,促进晶化,抗弯强度更高,玻璃可见光透过率超过80％;采用复合晶核剂样品晶粒尺寸小于100纳米,晶粒组织更细,同时成核效率高;复合晶核剂微晶玻璃的透过率、硬度和抗弯强度分别为85.4％、521 HV和79.37 MPa,比单一晶核剂玻璃性能更优.
Abstract
In order to improve the performance of LiO2-Al2O3-SiO2 system glass,this paper adopts the melting method to prepare LiO2-Al2O3-SiO2 glass with ZrO2/P2O5 multi-nucleation agent.The influence of different nucleating agents on the microcrystallization and mechanical properties of LiO2-Al2O3-SiO2 system glass were studied by scanning electron microscopy(SEM),differential thermal analysis(DSC)and X-ray diffraction(XRD).The studies have shown that the use of multi-nucleating agent in glass can reduce the activation energy of crystallization,promote crystallization,increase bending strength,and increase the glass visible light transmittance by more than 80％.The crystal grain size of the multi-nucleating agent samples is less than 100 nm,the grain structure is finer,and the nucleation efficiency is higher.The transmittance,hardness and flexural strength of glass-ceramics with composite nucleation agent are 85,4％,521 HV,and 79.37 MPa,respectively,which are better than single nucleation agent glass.
关键词
晶核剂/微晶玻璃/LiO2-Al2O3-SiO2/晶化活化能/力学性能Key words
Nucleating agent/Glass-ceramics/LiO2-Al2O3-SiO2/Crystallization activation energy/Mechanical properties引用本文复制引用
出版年
2024
NETL
NSTL
万方数据