Fe-Si-B/环氧树脂复合材料的制备及其介电性能  

Preparation and Dielectrical Properties of Fe-Si-B/Epoxy Composite

作　　者：侯晴[1] 范润华[1] 燕克兰[1] 张子栋[1] 陈敏[1] 孙凯[1] 程传兵[1] 谢培涛 

机构地区：[1]山东大学材料液固结构演变与加工教育部重点实验室,山东济南250061

出　　处：《稀有金属材料与工程》2016年第S1期271-273,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51172131)

摘　　要：采用液氮温区冷冻球磨混合物料,热压制备了非晶金属Fe-Si-B与质量分数为90%~96%的Fe-Si-B/环氧树脂复合材料。利用XRD、SEM对所制备的材料进行物相组成和微观形貌分析,利用阻抗分析仪对其电学性能进行测试分析。研究表明,冷冻球磨法可有效抑制球磨过程中非晶金属晶化。同时随着导电相含量的增加,Fe-Si-B/环氧树脂复合材料的介电频率响应符合德拜弛豫理论。Epoxy was used as matrix to prepare resin matrix composite at liquid nitrogen temperature by hot pressing, in which the content of amorphous Fe-Si-B powder varied from 90 wt% to 96 wt%. The phase characterization, microstructure and dielectric properties of the composite were analyzed by XRD, SEM and impedance analyzer. The results suggest that the cryomilling method can effectively restrain crystallization of the amorphous metal. Meanwhile, with the increase of the conductive phase, the dielectric frequency response of Fe-Si-B/epoxy composite fits the debye relaxation theory.

关 键 词：金属/聚合物复合材料 非晶金属 冷冻球磨 复介电常数 德拜弛豫 

分 类 号：TB332[一般工业技术—材料科学与工程]