ZrO_(2)/P_(2)O_(5)复合晶核剂对LiO_(2)-Al_(2)O_(3)-SiO_(2)玻璃微晶化和力学性能影响  

Effect of ZrO_(2)/P_(2)O_(5)Nucleating Agent on the Microcrystallization and Mechanical Properties of LiO_(2)-Al_(2)O_(3)-SiO_(2)Glass

作　　者：韩韬 王衍行 李现梓 杨鹏慧 徐驰 祖成奎 HAN Tao;WANG Yanhang;LI Xianzi;YANG Penghui;XU Chi;ZU Chengkui(Building Material Industrial Key Laboratory for Special Glass Preparation and Processing,China Building Materials Academy,Beijing 100024,China)

机构地区：[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

出　　处：《中国陶瓷》2024年第1期35-40,共6页China Ceramics

摘　　要：为提高LiO_(2)-Al_(2)O_(3)-SiO_(2)系玻璃的性能,采用熔融法制备了ZrO_(2)/P_(2)O_(5)复合晶核剂的LiO_(2)-Al_(2)O_(3)-SiO_(2)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LiO_(2)-Al_(2)O_(3)-SiO_(2)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。In order to improve the performance of LiO_(2)-Al_(2)O_(3)-SiO_(2)system glass,this paper adopts the melting method to prepare LiO_(2)-Al_(2)O_(3)-SiO_(2)glass with ZrO2/P2O5 multi-nucleation agent.The influence of different nucleating agents on the microcrystallization and mechanical properties of LiO_(2)-Al_(2)O_(3)-SiO_(2)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 LiO_(2)-Al_(2)O_(3)-SiO_(2) 晶化活化能 力学性能 

分 类 号：TQ171.733[化学工程—玻璃工业]