期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 177, 期 11, 页码 892-896出版社
ELSEVIER
DOI: 10.1016/j.mseb.2012.03.056
关键词
Polymer-matrix composites (PMCs); Electrical properties; Thermal properties; Modeling; Scanning electron microscopy (SEM)
资金
- National Science Foundation of China [61025002, 10979035, 50835007]
- National 973-project of China [2009CB623302]
- International Science and Technology Collaboration Project of China [2009DFA51820]
Polymethyl methacrylate (PMMA) composites filled with Aluminum Nitride (AlN) were prepared by powder processing technique. The microstructures of the composites were investigated by scanning electron microscopy techniques. The effect of AlN filler content (0.1-0.7 volume fraction (vf)) on the thermal conductivity, relative permittivity, and dielectric loss were investigated. As the vf of AlN filler increased, the thermal conductivity of the specimens increased. The thermal conductivity and relative permittivity of AlN/PMMA composites with 0.7 vf AlN filler were improved to 1.87 W/(m K) and 4.4 (at 1 MHz), respectively. The experimental thermal conductivity and relative permittivity were compared with that from simulation model. (C) 2012 Elsevier B.V. All rights reserved.
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