Journal
CERAMICS INTERNATIONAL
Volume 39, Issue 4, Pages 3651-3656Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2012.10.194
Keywords
Silicon carbide; Combustion synthesis; Microwave absorption property
Categories
Funding
- National Natural Scientific Foundation of China [51002113]
- Natural Science Basic Research Plan in Shaanxi Province of China [2012JQ6021]
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Fe-doped SiC powders were synthesized via combustion reaction of the Si and C system in a 0.1 MPa nitrogen atmosphere using iron as the dopant. The prepared powders have fine spherical particles and narrow particle size distribution. The electric permittivities of SiC samples were determined in the frequency range of 8.2-12.4 GHz. Results show that the permittivity of SiC increases with the increasing iron contents. The 5% Fe-doped SiC powder with 2 mm or 2.5 mm thickness exhibits the best microwave absorption over the frequencies ranging from 8.2 to 12.4 GHz. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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