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6CCVD Research

The Effect of B Coating in Enhancing Properties of Al/Diamond Composites

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2025-05-05
JournalMaterials
AuthorsJiaxiong Li, Meifang Hou, Haiyuan Chen, Huan Yu, Jixue Zhou
InstitutionsQilu University of Technology, Shandong Academy of Sciences
Citations1
AnalysisFull AI Review Included

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Al/diamond composites are considered a new generation of potential thermal management materials. In this study, the uniform B coating on the surface of diamond particles was prepared by the vacuum thermal diffusion method. Subsequently, Al matrix composites reinforced with B-coated diamond particles were produced by the gas pressure infiltration method. The plating time was varied from 0 to 120 min to investigate the effect of B coating on the thermal conductivity and thermal expansion of the Al/B-diamond composites. The thermal conductivity for the Al/B-diamond composites increased from 422 W/mĀ·K to 562 W/mĀ·K with prolonged plating time from 0 to 90 min. Correspondingly, the coefficient of thermal expansion was tailored from 7.0 Ɨ 10āˆ’6/K to 5.8 Ɨ 10āˆ’6/K. The enhanced thermal conductivity and decreased coefficient of thermal expansion were attributed to strong interfacial bonding in Al/B-diamond composites. The results indicate that the appropriate thickness of B coating is a viable method to improve interfacial bonding between the Al matrix and B-coated diamond particles.

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References

Section titled ā€œReferencesā€
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  5. 2020 - Construction of 3D interconnected diamond networks in Al-matrix composite for high-efficiency thermal management [Crossref]
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