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Microwave absorption properties of composite powders with low density

机译:低密度复合粉末的微波吸收特性

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The composites of barium ferrite coated on hollow ceramic microspheres were prepared using sol-gel technique. The crystal structure, morphology and microwave absorption properties of composite powders with different weight ratio of microspheres were studied with XRD, EDS, FESEM and vector network analyzer. The results show that the microwave absorption properties of composite powders are greatly improved. The maximum microwave loss of composite powders reaches 31 dB with an amount of 50 wt.% microspheres, and its density is only about 1.80 g/cm(3). The effect of hollow ceramic microspheres on the microwave absorption property is also discussed. (c) 2006 Elsevier B.V. All rights reserved.
机译:采用溶胶凝胶法制备了包覆在空心陶瓷微球上的钡铁氧体复合材料。用XRD,EDS,FESEM和矢量网络分析仪研究了微球不同重量比的复合粉末的晶体结构,形貌和吸波性能。结果表明,复合粉末的微波吸收性能大大提高。复合粉末的最大微波损耗达到31 dB,其中微球的量为50 wt。%,其密度仅为1.80 g / cm(3)。还讨论了空心陶瓷微球对微波吸收性能的影响。 (c)2006 Elsevier B.V.保留所有权利。

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