期刊
MATERIALS & DESIGN
卷 165, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2018.107580
关键词
Vertically aligned-BN; Through-plane thermal conductivity; SR composites; Interface thermal resistance; Mechanical orientation
资金
- National Key R&D Program of China [2016YFC0204600]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09030202]
Effective heat dissipation has become a critical issue for electronic devices. In this study, the silicone rubber (SR)/vertically aligned boron nitride (BN) composites were prepared and the thermal conductivity of the composites was systematically investigated. The vertically aligned BNs constructed effective vertical thermal conductive pathways in the SR matrix, and the SR/ABN composites exhibited much higher through-plane thermal conductivity compared to the non-orientated SR/BN composite. The through-plane thermal conductivity of SR/ABN150 reached 5.4 W m(-1) K-1, which was similar to 6.3 and similar to 33 times higher than those of SR/BN150 and pure SR, respectively. In addition, the surface thermal infrared analysis also indicates that the vertically aligned SR/ABN composites possess excellent heat transfer capacity during the heating and cooling processes. The obtained results exhibit the potential for the design and preparation of thermal interface materials (TIMs) with high through-plane thermal conductivity to be applied in thermal conductive and electrical insulating field. (C) 2019 Elsevier Ltd.
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