Al2O3含量对PbO-CaO-B2O3-SiO2系玻璃析晶行为与烧结性能的影响

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (11): 3997-4002.

所属专题：玻璃

• 封接玻璃与低温共烧陶瓷 • 上一篇下一篇

Al₂O₃含量对PbO-CaO-B₂O₃-SiO₂系玻璃析晶行为与烧结性能的影响

海韵, 徐博, 殷先印, 朱宝京, 韩滨, 祖成奎

中国建筑材料科学研究总院有限公司,北京 100024

收稿日期:2022-08-14 修订日期:2022-09-19 出版日期:2022-11-15 发布日期:2022-12-12
通信作者: 祖成奎,博士,教授级高级工程师。E-mail:zuchengkui@cbma.com.cn
作者简介:海韵(1989—),女,博士。主要从事特种玻璃材料的研究。E-mail:haiyun6949@126.com

Effect of Al₂O₃ Content on Crystallization Behavior and Sintering Performance of PbO-CaO-B₂O₃-SiO₂ Glass

HAI Yun, XU Bo, YIN Xianyin, ZHU Baojing, HAN Bin, ZU Chengkui

China Building Materials Academy, Beijing 100024, China

Received:2022-08-14 Revised:2022-09-19 Online:2022-11-15 Published:2022-12-12

摘要/Abstract

摘要： PbO-CaO-B₂O₃-SiO₂系玻璃粉体是耐高过载低温共烧陶瓷(LTCC)生瓷带的主要组成部分。玻璃粉体的析晶行为影响烧结性能,进而决定基板的使用性能。本文研究了Al₂O₃含量对PbO-CaO-B₂O₃-SiO₂系玻璃析晶行为与烧结性能的影响。结果表明:向PbO-CaO-B₂O₃-SiO₂系玻璃中引入Al₂O₃可抑制玻璃析晶,防止高膨胀晶相的析出,并提高玻璃烧结密度;不含Al₂O₃的PbO-CaO-B₂O₃-SiO₂玻璃粉体析晶峰温度为862 ℃,烧结过程中析出方石英晶相,20~200 ℃的平均线膨胀系数高达260.8×10^-7 ℃^-1;引入2.1%(质量分数)Al₂O₃可显著抑制玻璃析晶,700 ℃烧结后膨胀系数降低至72.9×10^-7 ℃^-1,介电常数显著增大,由6.30提高至7.02。

关键词: PbO-CaO-B₂O₃-SiO₂玻璃, 玻璃粉, Al₂O₃, 烧结性能, 析晶行为, 低温共烧陶瓷

Abstract: PbO-CaO-B₂O₃-SiO₂ glass powder is the main component of low temperature co-fired ceramics (LTCC) raw green tape with high overload resistance. The crystallization behavior of glass powder affects the sintering performance, and then determines the performance of substrate. The effect of Al₂O₃ content on crystallization behavior and sintering performance of PbO-CaO-B₂O₃-SiO₂ glass was studied. The results show that the addition of Al₂O₃ into PbO-CaO-B₂O₃-SiO₂ glass can reduce the trend of crystallization, prevent the precipitation of high expansion crystalline phase and improve the sintering density of glass. The crystallization peak temperature of PbO-CaO-B₂O₃-SiO₂ glass powder without Al₂O₃ is 862 ℃, and cristobalite phase precipitates during sintering, which makes the average coefficient of linear expansion reach 260.8×10^-7 ℃^-1 at 20~200 ℃. The addition of 2.1% (mass fraction) Al₂O₃ into PbO-CaO-B₂O₃-SiO₂ glass can significantly reduce the crystallization capability of glass, and the expansion coefficient decreases to 72.9×10^-7 ℃^-1 after sintering at 700 ℃, with significantly increased dielectric constant from 6.30 to 7.02.

Key words: PbO-CaO-B₂O₃-SiO₂ glass, glass powder, Al₂O₃, sintering performance, crystallization behavior, low temperature co-fired ceramics

中图分类号:

TQ171

海韵, 徐博, 殷先印, 朱宝京, 韩滨, 祖成奎. Al₂O₃含量对PbO-CaO-B₂O₃-SiO₂系玻璃析晶行为与烧结性能的影响[J]. 硅酸盐通报, 2022, 41(11): 3997-4002.

HAI Yun, XU Bo, YIN Xianyin, ZHU Baojing, HAN Bin, ZU Chengkui. Effect of Al₂O₃ Content on Crystallization Behavior and Sintering Performance of PbO-CaO-B₂O₃-SiO₂ Glass[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(11): 3997-4002.

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Al₂O₃含量对PbO-CaO-B₂O₃-SiO₂系玻璃析晶行为与烧结性能的影响

Effect of Al₂O₃ Content on Crystallization Behavior and Sintering Performance of PbO-CaO-B₂O₃-SiO₂ Glass

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