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Materials 2017, 10(12), 1442; doi:10.3390/ma10121442

Development of AlN/Epoxy Composites with Enhanced Thermal Conductivity

1
Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
Beijing Institute of Space Long March Vehicle, Beijing 100076, China
4
The State Key Lab of High Performance Ceramics and Surperfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
*
Authors to whom correspondence should be addressed.
Received: 27 November 2017 / Revised: 10 December 2017 / Accepted: 11 December 2017 / Published: 18 December 2017
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Abstract

AlN/epoxy composites with high thermal conductivity were successfully prepared by infiltrating epoxy into AlN porous ceramics which were fabricated by gelcasting of foaming method. The microstructure, mechanical, and thermal properties of the resulting composites were investigated. The compressive strengths of the AlN/epoxy composites were enhanced compared with the pure epoxy. The AlN/epoxy composites demonstrate much higher thermal conductivity, up to 19.0 W/(m·K), compared with those by the traditional particles filling method, because of continuous thermal channels formed by the walls and struts of AlN porous ceramics. This study demonstrates a potential route to manufacture epoxy-based composites with extremely high thermal conductivity. View Full-Text
Keywords: composites; thermal conductivity; AlN porous ceramics; infiltrating composites; thermal conductivity; AlN porous ceramics; infiltrating
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Xu, Y.; Yang, C.; Li, J.; Mao, X.; Zhang, H.; Hu, S.; Wang, S. Development of AlN/Epoxy Composites with Enhanced Thermal Conductivity. Materials 2017, 10, 1442.

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