Microwave Heating Effect and Mechanism for Carbon Fiber Preforms

doi:10.3724/SP.J.1077.2007.01165

Journal of Inorganic Materials

• Research Paper • Previous Articles Next Articles

Microwave Heating Effect and Mechanism for Carbon Fiber Preforms

ZOU Ji-Zhao^1, ZENG Xie-Rong^2,3, XIONG Xin-Bo ^2,3, LI Xiao-Hua ^2,3,TANG Han-Ling ^1, LI Long¹

1. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China; 2. College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China; 3. Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, China

Received:2006-10-31 Revised:2006-12-05 Published:2007-11-20 Online:2007-11-20

Abstract

Abstract: Carbon fiber felts with different surface characteristics, stacking numbers, bulk densitywere heated by microwave irradiation to study the influence of these physical properties on microwave heating effect, analyzing the electric field distributions in the microwave oven. It indicates that carbon fiber preforms can be heated by microwave in (2450±50)MHz frequency. Furthermore, models of microwave heating were developed, and mechanisms of microwave energy loss were discussed. It is deduced that there are three kinds of heating mechanisms, which are doublet polarization, interface polarization and electrical conduction dissipation, respectively.

Key words: carbon fiber, microwave heating, temperature gradient, preform

CLC Number:

TB332

ZOU Ji-Zhao,ZENG Xie-Rong,XIONG Xin-Bo,LI Xiao-Hua,TANG Han-Ling,LI Long. Microwave Heating Effect and Mechanism for Carbon Fiber Preforms
[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.01165.

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Microwave Heating Effect and Mechanism for Carbon Fiber Preforms

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