期刊
COMPOSITES PART B-ENGINEERING
卷 90, 期 -, 页码 37-44出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.11.037
关键词
Carbon fibre; Polymer-matrix composites (PMCs); Electrical properties; Thermal properties
资金
- Basic Science Research Program through the National Research Foundation - Ministry of Education, Korea [2012R1A1A2044321]
- Fire Fighting Safety and 119 Rescue Technology Research and Development Program - Ministry of Public Safety and Security, Korea [MPSS-fire safety-2015-72]
- National Research Foundation of Korea [2012R1A1A2044321] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The resistive heating and thermoelectric characteristics of discontinuous carbon fiber-epoxy composites are explored experimentally and numerically. Composite samples with different carbon fiber concentrations (1, 3, and 5 wt.%) were manufactured using sonication and cast molding. DC current was applied, and the temperature distributions on the surfaces of the samples were assessed visually and quantitatively using an infrared camera. The resistive heating mechanism was investigated in conjunction with applied voltage and carbon fiber loading. Experimental results show that resistive heating efficiency increased proportionately with applied voltage and carbon fiber content, and this was confirmed by numerical simulations of fiber contacts at various fiber volume fractions using representative volume elements. In parallel, the thermoelectric behavior of composites was characterized using a specially designed and fabricated test setup. The discontinuous carbon fiber-epoxy composites showed p-type thermoelectric behavior, and the generated voltage and Seebeck coefficient increased with increasing applied temperature and temperature difference. (C) 2015 Elsevier Ltd. All rights reserved.
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