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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (3): 835-844.DOI: 10.16552/j.cnki.issn1001-1625.2025.1087

• 玻璃本构与模拟计算 • 上一篇    下一篇

ZrO2对Li2O-Al2O3-B2O3微晶玻璃析晶行为及微波介电性能的影响

倪宇博1,2(), 陈志斌3, 曾广4, 罗琼4(), 陈巧1, 刘佳1, 李文俊2, 邹澳琪2, 王静2, 田培静2, 韩建军2   

  1. 1.长飞光纤光缆股份有限公司光纤光缆先进制造与应用技术全国重点实验室,武汉 430070
    2.武汉理工大学先进玻璃材料全国重点实验室,武汉 430070
    3.OPPO广东移动通信有限公司,东莞 523859
    4.佛山市顺德区美的电热电器制造有限公司,佛山 528311
  • 收稿日期:2025-11-07 修订日期:2025-11-18 出版日期:2026-03-20 发布日期:2026-04-10
  • 通信作者: 罗琼,博士。E-mail:luoqiong10@midea.com
  • 作者简介:倪宇博(2001—),男,硕士研究生。主要从事微晶玻璃的研究。E-mail:18986061553@163.com
  • 基金资助:
    光纤光缆先进制造与应用技术全国重点实验室(长飞公司)开放课题(SKLD 2207)

Effect of ZrO2 on Crystallization Behavior and Microwave Dielectric Properties of Li2O-Al2O3-B2O3 Glass-Ceramics

NI Yubo1,2(), CHEN Zhibin3, ZENG Guang4, LUO Qiong4(), CHEN Qiao1, LIU Jia1, LI Wenjun2, ZOU Aoqi2, WANG Jing2, TIAN Peijing2, HAN Jianjun2   

  1. 1.State Key Laboratory of Optical Fiber and Cable Manufacture Technology,Yangtze Optical Fibre and Cable Joint Stock Limited Company(YOFC),Wuhan 430070,China
    2.State Key Laboratory of Advanced Glass Materials,Wuhan University of Technology,Wuhan 430070,China
    3.OPPO Guangdong Mobile Communications Co. ,Ltd. ,Dongguan 523859,China
    4.Foshan Shunde Midea Electric Heating Appliance Manufacturing Co. ,Ltd. ,Foshan 528311,China
  • Received:2025-11-07 Revised:2025-11-18 Published:2026-03-20 Online:2026-04-10

摘要:

随着5G技术的推进,微波和毫米波频段器件对高性能介电材料的需求日益增长。本文以Li2O-Al2O3-B2O3(LAB)体系微晶玻璃为研究对象,采用低温共烧法制备了能在超低温下烧结致密且具有优异微波介电性能的微晶玻璃,并研究了外加ZrO2对LAB微晶玻璃析晶行为及微波介电性能的影响。结果表明:当ZrO2掺量从0.2%(摩尔分数,下同)增至0.8%时,LAB微晶玻璃主晶相为LiBO2,析出晶体种类和数量基本没有变化。微晶玻璃Avrami指数n为3.05~3.89,表明该体系的晶体生长机制主要为体析晶,ZrO2的引入降低了微晶玻璃的析晶活化能。随着ZrO2掺量的增加,LAB微晶玻璃显微结构中气孔增多,体积密度也因此而降低。当外加0.2% ZrO2时,Z1微晶玻璃在650 ℃下烧结7 h具备良好的微波介电性能,微波相对介电常数εr=7.5,品质因素Q×f =16 958 GHz,该微晶玻璃是一种良好的超低温共烧陶瓷(ULTCC)候选材料。

关键词: Li2O-Al2O3-B2O3微晶玻璃, 超低温共烧陶瓷, ZrO2, 微波介电性能, 析晶活化能, 微观结构

Abstract:

With the advancement of 5G, the demand for high-performance dielectric materials devices operating in microwave and millimeter-wave frequency bands is increasing. In this paper, Li2O-Al2O3-B2O3 (LAB) glass-ceramics were synthesized using the low-temperature co-fired method, capable of dense sintering and exhibiting excellent microwave dielectric properties at ultra-low temperature. The effect of ZrO2 content on the crystallization behavior and microwave dielectric properties of LAB glass-ceramics was also studied. The results show that as ZrO2 content increases from 0.2%(molar fraction, the same below) to 0.8%, the primary crystalline phase in LAB glass-ceramics is LiBO2. The types and quantities of crystals remain essentially unchanged. The Avrami index n of glass-ceramics ranges from 3.05 to 3.89, indicating that the crystal growth mechanism in this system is primarily bulk crystallization. However, ZrO2 content reduces the crystallization activation energy of glass-ceramics. The microstructure of LAB glass-ceramics exhibit increased porosity with increasing ZrO2 content, consequently reducing its bulk density. Z1 glass-ceramics doped with 0.2% ZrO2 is sintered at 650 ℃ for 7 h, yielding excellent microwave dielectric properties, microwave dielectric constant εr=7.5 and quality factor Q×f =16 958 GHz, the glass-ceramics is a promising candidate material for application in ultra-low temperature co-fired ceramics (ULTCC).

Key words: Li2O-Al2O3-B2O3 glass-ceramics, ultra-low temperature co-fired ceramics, ZrO2, microwave dielectric property, crystallization activation energy, microstructure

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