Effect of microwave hybrid susceptors on the interface morphology, mechanical properties and fracture morphology of Cu/ nano-Sn-3.0Ag-0.5Cu/Cu joints

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The utilization of microwave hybrid heating in the field of low-temperature joining presents a notable benefit of delivering both selective and uniform heating, a feature that is not commonly observed in traditional welding methods. This work utilized numerical simulation to predict the heating effects of three susceptors. Furthermore, the impacts of susceptor variants on the interface morphology, mechanical properties, and fracture morphology of the Sn-3.0 Ag-0.5 Cu joint were studied. In the current study, the normal MHH technique was utilized with parameters of 900 W and 240 s to achieve successful joint production. According to the numerical simulation, the heating rate of carbon powder as a susceptor was found to be greater than that of graphite, while silicon carbide susceptor exhibited the slowest heating rate. Nevertheless, the combustion of carbon powder during the MHH process poses a potential risk to the integrity of the microwave cavity. As a result, graphite powder was selected as a more suitable susceptor. The experimental findings indicate that the shear strength of the joint with silicon carbide and charcoal as the susceptor is 75.4 % and 91.0 % of that with graphite as the susceptor, respectively. The fracture modes of the three samples with various susceptors are mixed fracture.
Publisher
ELSEVIER
Issue Date
2024-01
Language
English
Article Type
Article
Citation

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v.28, pp.1743 - 1751

ISSN
2238-7854
DOI
10.1016/j.jmrt.2023.12.023
URI
http://hdl.handle.net/10203/320092
Appears in Collection
MS-Journal Papers(저널논문)
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