Effect of ultrasonic conditions on microstructural and mechanical of Sn58Bi and Sn58Bi solder joints with 0.6 % Si3N4 nanoparticles

IF 4.8 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2025-04-07 DOI:10.1016/j.matchar.2025.115019

Kai Deng , Liang Zhang , Li-Li Gao , Meng Zhao , Xiao-Bin Zhang , Mo Chen , Xin-Quan Yu , Quan-Bin Lu , Lei Sun

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引用次数: 0

Abstract

This study used ultrasonic time as a variable to test Sn58Bi and Sn58Bi solder joints with 0.6 % Si₃N₄ nanoparticles. Ultrasound was applied to the solder joints for 0, 5, 10, and 15 s to observe how the microstructural and mechanical properties changed in the solder joints. It was found that the microstructure of the solder joint became more uniform with increasing ultrasonic time, and the thickness of the IMC increased after the application of ultrasound. Compared with Sn58Bi, the IMC of Sn58Bi-0.6Si₃N₄ was thicker. The IMC became more uniform when the ultrasonic time reached 15 s. In the absence of ultrasonic treatment, the solder still contained large particles, but with the increase in ultrasonic time, the grains became smaller. The shear strength increased with increasing ultrasonic time, reaching a maximum at 15 s of ultrasonic treatment. Compared to Sn58Bi, Sn58Bi-0.6Si₃N₄ had smaller particles and higher shear strength in its solder joints for the same ultrasonic time. The maximum shear strength reached 58.50 MPa at 15 s of ultrasonic time.

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超声条件对含0.6% Si3N4纳米颗粒Sn58Bi和Sn58Bi焊点组织和力学性能的影响

本研究以超声波时间为变量，对含0.6% Si3N4纳米颗粒的Sn58Bi和Sn58Bi焊点进行了测试。超声作用于焊点0、5、10、15 s，观察焊点组织和力学性能的变化。结果表明，随着超声时间的增加，焊点的显微组织变得更加均匀，超声作用后IMC的厚度增加。与Sn58Bi相比，Sn58Bi-0.6 si₃N₄的IMC更厚。超声时间达到15 s时，内压分布更加均匀。在没有超声处理的情况下，焊料中仍含有较大的颗粒，但随着超声时间的增加，颗粒变小。抗剪强度随超声处理时间的增加而增大，在超声处理15 s时达到最大值。与Sn58Bi相比，在相同超声时间下，Sn58Bi-0.6 si₃N₄的焊点颗粒更小，抗剪强度更高。超声作用15 s时，抗剪强度达到58.50 MPa。

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来源期刊

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.