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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (6): 2151-2159.DOI: 10.16552/j.cnki.issn1001-1625.2025.1213

• 玻璃 • 上一篇    下一篇

CeO2对透明锂铝硅微晶玻璃析晶行为与性能的影响

邬兰宇1,2,3(), 章向华2, 刘尧龙1,3(), 陆平2, 张丹丹2, 马桔萍1, 李翰林2,3, 林思慧2,3, 许银生2()   

  1. 1.中国建材国际工程集团有限公司,上海 200063
    2.武汉理工大学硅酸盐科学与先进建材全国重点实验室,武汉 430070
    3.中建材玻璃新材料研究院集团有限公司先进玻璃材料全国重点实验室,蚌埠 233000
  • 收稿日期:2025-12-03 修订日期:2025-12-31 出版日期:2026-06-15 发布日期:2026-07-14
  • 通信作者: 刘尧龙,教授级高级工程师。E-mail: lyl@ctiec.net
    许银生,博士,研究员。E-mail: xuyinsheng@whut.edu.cn
  • 作者简介:邬兰宇(2001—),男,硕士研究生。主要从事功能玻璃的研究。E-mail: wulanyu2023@163.com
  • 基金资助:
    国家自然科学基金(U2241236);国家自然科学基金(52372014);上海市先导产业创新发展专项(2025-GZL-RGZN-BTBX-02001);2025年度普陀区加快发展研发服务产业专项(2025-B01-07)

Effect of CeO2 on Crystallization Behavior and Properties of Transparent Lithium Aluminosilicate Glass-Ceramics

WU Lanyu1,2,3(), ZHANG Xianghua2, LIU Yaolong1,3(), LU Ping2, ZHANG Dandan2, MA Juping1, LI Hanlin2,3, LIN Sihui2,3, XU Yinsheng2()   

  1. 1.China Triumph International Engineering Co.,Ltd.,Shanghai 200063,China
    2.State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China
    3.State Key Laboratory of Advanced Glass Materials,CNBM Research Institute for Advanced Glass Materials Group Co.,Ltd.,Bengbu 233000,China
  • Received:2025-12-03 Revised:2025-12-31 Published:2026-06-15 Online:2026-07-14

摘要:

稀土氧化物CeO2不仅影响玻璃熔制澄清工艺,而且能控制析晶和提升玻璃的透过率,改善玻璃材料的力学、抗辐照等性能,从而拓宽锂铝硅(LAS)微晶玻璃在航空航天等严苛环境中的应用。本文研究了微量CeO2掺杂(≤1.0%,质量分数)对LAS微晶玻璃结构、析晶行为及性能的调控机制。结果表明,CeO2的引入可有效调节玻璃网络中Q4结构单元含量,适量CeO2(<0.5%)对LAS玻璃析晶具有抑制作用,但过量CeO2(≥0.5%)反而促进析晶,使结构解聚。LAS微晶玻璃的晶粒尺寸随CeO2含量增加先减小后增大。通过优化CeO2的含量,实现了微晶玻璃晶粒的细化,提升了微晶玻璃的维氏硬度、断裂韧性、透过率及抗辐照性能。当CeO2含量为0.3%时,可获得晶粒细小、性能优异的微晶玻璃,维氏硬度达7.45 GPa,断裂韧性为0.93 MPa?m1/2,并有较好的抗辐照性能。

关键词: 锂铝硅微晶玻璃, CeO2, 透锂长石, 二硅酸锂, 透过率, 细晶强化, 抗辐照性能

Abstract:

The rare earth oxide CeO2 not only affects the glass melting and refining process, but also controls crystallization and enhances the transmittance of glass, improving the mechanical and radiation resistance properties of glass materials, thereby expanding the application of lithium aluminosilicate (LAS) glass-ceramics in harsh environments such as aerospace. This article investigated the regulatory mechanism of trace CeO2 doping (≤1.0%, mass fraction) on the structure, crystallization behavior, and properties of LAS glass-ceramics. The results indicate that the introduction of CeO2 can effectively regulate the content of Q4 structural units in the glass network. Moderate CeO2 (<0.5%) has an inhibitory effect on the crystallization of LAS glass-ceramics, but excessive CeO2 (≥0.5%) actually promotes crystallization and structural depolymerization. The grain size of LAS glass-ceramics decreases first and then increases with the increase of CeO2 content. By optimizing the CeO2 content, the grain refinement of glass-ceramics is realized and its Vickers hardness, fracture toughness, transmittance, and radiation resistance property are improved. When the CeO2 content is 0.3%, glass-ceramics with fine grains and excellent properties can be obtained, with a Vickers hardness of 7.45 GPa, fracture toughness of 0.93 MPa?m1/2, and it has good radiation resistance property.

Key words: lithium aluminosilicate glass-ceramics, CeO2, petalite, lithium disilicate, transmittance, grain refinement strengthening, radiation resistance property

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