文章摘要
石墨烯/Fe3O4/FeSiAl复合材料的制备及吸波性能
Preparation and Absorbing Properties of Graphene/ Fe3O4/FeSiAl Composites
投稿时间:2017-11-29  修订日期:2018-03-20
DOI:
中文关键词: 石墨烯  FeSiAl  水热法  Fe3O4  复合吸波材料
英文关键词: Graphene  FeSiAl  Hydrothermal method  Fe3O4  Composite absorbing material
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
金丹 西安建筑科技大学材料与矿资学院 jindan@xauat.edu.cn 
郭宇鹏 西安建筑科技大学材料与矿资学院  
孙可为 西安建筑科技大学材料与矿资学院  
丁冬海 西安建筑科技大学材料与矿资学院  
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中文摘要:
      本文采用水热法制备石墨烯/Fe3O4/FeSiAl复合材料。通过XRD、SEM、Raman、FTIR和矢量网络分析仪(PNA)等测试手段对石墨烯/Fe3O4/FeSiAl复合材料的晶相、微观形貌和吸波性能进行了表征和分析。结果表明:通过水热还原,氧化石墨烯还原成石墨烯,并且生成的石墨烯及Fe3O4颗粒均匀包覆在FeSiAl片状磁粉上,这种片状和颗粒状不同结构的复合,制备出了兼具磁损耗和介电损耗的吸波材料。随着氧化石墨烯与FeSiAl质量比的增加,石墨烯/Fe3O4/FeSiAl复合材料的有效吸收频带(反射率小于-10 dB)向高频移动,有助于吸波材料在高频段的应用。
英文摘要:
      The Graphene/Fe3O4/FeSiAl composite was prepared by hydrothermal method. Crystal phase, microstructure and wave absorbing property of the Graphene/Fe3O4/FeSiAl composite were characterized by XRD, Raman, SEM, FTIR and PNA. The results shown that graphene oxide was reduced to graphene by hydrothermal method. And FeSiAl magnetic flakes were coated by graphene and Fe3O4 particles evently. The absorbing material with both magnetic loss and dielectric loss can be realized by composite of flaky and granular. As the mass ratio of graphene oxide with FeSiAl increases, the effective absorption band (RL<-10 dB) of graphene/Fe3O4/FeSiAl composites is moved to higher frequency, which is positive for the application of the absorbent material in the high frequency band.
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