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材料工程  2015 

羰基铁/钛酸钡复合材料的制备及吸波性能

DOI: 10.11868/j.issn.1001-4381.2015.07.007, PP. 38-42

Keywords: 羰基铁/钛酸钡,复合材料,吸波性能

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Abstract:

采用溶胶-凝胶法和物理共混法制备纳米钛酸钡和羰基铁/钛酸钡复合材料.通过X射线衍射仪(XRD)、透射电镜(TEM)、矢量网络分析仪(PNA)等测试手段对材料的物相、形貌和性能进行了表征和分析.结果表明所制备出的样品为粒径约60nm的四方晶相的钛酸钡和分散均匀的羰基铁/钛酸钡复合材料;在0~6GHz范围内,羰基铁/钛酸钡复合材料的吸波性能较纯羰基铁有了很大的提高,当wBaTiO3=4%时,其吸波性能最佳,最大吸收峰值为-22.9dB,-10dB频宽为2.196GHz.

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