Effect of Microwave-Activated Sintering on Microstructure and Properties of Graphite/Copper Composites
Source abstract
Abstract
When the graphite/copper composite is used as an electronic packaging material, it is difficult to take advantage of the thermal conductivity due to its poor interface bonding. In this study, rapid microwave sintering was used to improve the properties of composites, and the wettability between graphite and copper was improved by adding titanium. The results show that microwave sintering can promote the uniform distribution of graphite in the copper matrix, facilitate the effective welding of graphite and copper, and refine the grain size of the copper matrix. Moreover, a uniform transition layer of TiC is formed after adding titanium. After these treatments, the interface bonding between graphite and copper is effectively improved, and the density, hardness, and thermal conductivity of the composites are increased. The thermal conductivity obtained is 1.78 times higher than that of the conventional sintering. Besides, microwave sintering can promote the diffusion of titanium components, which can significantly improve the thermal properties of composites.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Advanced materials and composites · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, P. R. China
National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming 650093, P. R. China
Funding
Ministry of Science and Technology of the People's Republic of China · Kunming University of Science and Technology · National Natural Science Foundation of China · Yunnan?Science?and?Technology?Major Project · Yunnan Province
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