Combustion synthesis and microwave absorption property of SiC(Fe) solid solution powder under different reaction time

Xiaolei Su, Yan Jia, Junbo Wang, Jie Xu, Xinhai He, Chong Fu, Songtao Liu

科研成果: 期刊稿件文章同行评审

25 引用 (Scopus)

摘要

SiC(Fe) solid solution powders were synthesized via combustion reaction of the Si and C system in a 0.1 MPa nitrogen atmosphere using iron as the dopant and PTFE as the chemical activator, under different reaction time. The microstructures of prepared powders have been characterized by the SEM, EDS, XRD and Raman spectra, respectively. Results indicate that 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 decreases with the increasing reaction time. The Fe doped SiC powder with reaction time of 45 min with 2 mm or 2.5 mm thickness exhibit the best microwave absorption properties in the X-band range(8.2-12.4 GHz). A method to predict absorbing property in the other frequency range has been presented.

源语言英语
页(从-至)1905-1912
页数8
期刊Journal of Materials Science: Materials in Electronics
24
6
DOI
出版状态已出版 - 6月 2013
已对外发布

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