羰基铁/钛酸钡复合材料的制备及吸波性能  

Preparation and Microwave Absorbing Properties of Fe(CO)_5/BaTiO_3 Composites

作　　者：景红霞[1] 李巧玲[1] 叶云[2] 裴王军 

机构地区：[1]中北大学理学院化学系,太原030051 [2]中北大学材料科学与工程学院,太原030051 [3]晋西工业集团表面处理分厂,太原030027

出　　处：《材料工程》2015年第7期38-42,共5页Journal of Materials Engineering

基　　金：国家自然科学基金项目(20871108;51272239);中北大学科学基金项目(2013-10)

摘　　要：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。Nano-BaTiO3 and Fe（CO）5/BaTiO3 composites were prepared by sol-gel method and physical blending.The phase,morphology and performance of materials were analyzed and characterized by XRD,TEM and PNA.The results show that the prepared samples are square crystalloid BaTiO3 with grain size of about 60 nm and the uniformly dispersed Fe（CO）5/BaTiO3 composites.The microwave absorption ability of the Fe（CO）5/BaTiO3 composites is greatly improved in 0-6GHz,compared with pure iron carbonyl.When the BaTiO3 contents is 4%,it has the best wave-absorbing property,of which the maximum absorption can reach-22.9dB and superior to the-10 dB bandwidth of2.196 GHz.

关 键 词：羰基铁/钛酸钡 复合材料 吸波性能 

分 类 号：TB33[一般工业技术—材料科学与工程]