硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (3): 862-870.DOI: 10.16552/j.cnki.issn1001-1625.2025.1062
李佳昊1(
), 田英良1,2, 赵志永1,2, 张勇3, 龚柯钱3, 刘正1,2(
)
收稿日期:2025-10-31
修订日期:2025-12-01
出版日期:2026-03-20
发布日期:2026-04-10
通信作者:
刘 正,博士,讲师。E-mail:liuzheng1210@bjut.edu.cn作者简介:李佳昊(2000—),男,博士研究生。主要从事电子玻璃相关研究。E-mail:ljh15233923511@163.com
基金资助:
LI Jiahao1(
), TIAN Yingliang1,2, ZHAO Zhiyong1,2, ZHANG Yong3, GONG Keqian3, LIU Zheng1,2(
)
Received:2025-10-31
Revised:2025-12-01
Published:2026-03-20
Online:2026-04-10
摘要:
针对不透明封接玻璃内部应力检测难及现有方法分辨率低的问题,本文提出了一种基于Cr3+掺杂Al2O3(Cr3+∶Al2O3)力敏光致荧光光谱的无损、高精度应力表征方法。通过将自制的纳米级Cr3+∶Al2O3力敏光致荧光颗粒均匀分散于铝硼硅玻璃基体,实现了同心筒状封接件玻璃径向应力的可视化定量表征,并结合微观形貌分析了裂纹形成机理。研究结果表明,Cr3+∶Al2O3颗粒在玻璃中分散均匀,具备优异的微区应力传感能力。在热膨胀系数匹配的可伐合金封接件中,玻璃全域处于压应力状态,形成了可靠的“外箍内”压缩封接结构;而在热膨胀系数失配的铜封接件中,玻璃基体主要承受拉应力,且最大拉应力区域(距界面约250 μm)与实际观测到的周向裂纹位置(距界面约300 μm)高度吻合。本工作证实了拉应力集中是导致封接失效的直接诱因,同时验证了该光谱学方法在封接玻璃微观力学行为分析与可靠性评估中的应用潜力。
中图分类号:
李佳昊, 田英良, 赵志永, 张勇, 龚柯钱, 刘正. 基于力敏光致荧光光谱的封接玻璃应力分布表征[J]. 硅酸盐通报, 2026, 45(3): 862-870.
LI Jiahao, TIAN Yingliang, ZHAO Zhiyong, ZHANG Yong, GONG Keqian, LIU Zheng. Characterization of Stress Distribution in Sealing Glass via Stress-Sensitive Photoluminescence Spectroscopy[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(3): 862-870.
| Element | Al | Cr | Si | Ca | Ni | Mg | Na | Fe | O |
|---|---|---|---|---|---|---|---|---|---|
| Mass fraction/% | 52.440 | 1.030 | 0.215 | 0.197 | 0.164 | 0.093 | 0.068 | 0.054 | 45.739 |
表1 Cr3+∶Al2O3粉末的元素组成
Table 1 Elemental composition of Cr3+∶Al2O3 powder
| Element | Al | Cr | Si | Ca | Ni | Mg | Na | Fe | O |
|---|---|---|---|---|---|---|---|---|---|
| Mass fraction/% | 52.440 | 1.030 | 0.215 | 0.197 | 0.164 | 0.093 | 0.068 | 0.054 | 45.739 |
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