姚正军

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教授 博士生导师

招生学科专业:
化学 -- 【招收硕士研究生】 -- 材料科学与技术学院
材料科学与工程 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
机械 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院

主要任职:面向苛刻环境的材料制备与防护技术工业和信息化部重点实验室主任

其他任职:江苏省金属学会副理事长,江苏省热处理及表面改性工程技术研究中心副主任,江苏省机械工程学会材料工程专业委员会副理事长,江苏省复合材料学会常务理事

毕业院校:南京航空航天大学

学历:南京航空航天大学

学位:工学博士学位

所在单位:材料科学与技术学院

办公地点:江宁校区东区D10-材料楼A511

联系方式:13951818597

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Microwave absorption properties of double-layer absorbers based on Co0.2Ni0.4Zn0.4Fe2O4 ferrite and reduced graphene oxide composites

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所属单位:材料科学与技术学院

发表刊物:JOURNAL OF ALLOYS AND COMPOUNDS

关键字:Graphene Ferrite Impedance matching Microwave absorption property

摘要:In this work, microwave absorption properties of single-layer and double-layer absorbers based on Co0.2Ni0.4Zn0.4Fe2O4 (CNZF) ferrite and reduced graphene oxide (rGO) composites were investigated. The CNZF was prepared by using a sol-gel autoignition method and the rGO was prepared by using a thermal reduction process. Paraffin composites were synthesized by using a facile hot-press method. Their electromagnetic parameters were measured by using coaxial line method. The double-layer absorbers, consisting of 30 wt% CNZF composite as matching layer and 30 wt% rGO composite as absorption layer, with total thickness of 2.5 mm, exhibited a maximum reflection loss (R-L) of -49.5 dB at 16.9 GHz, as well as an effective bandwidth below -10 dB of as wide as 6.0 GHz from 12.0 GHz to 18.0 GHz. The greater microwave absorption performance of the double-layer absorbers should be attributed to the better impedance matching characteristic of the CNZF layer and the greater dielectric loss ability of rGO layer. It is expected that our double-layer structures can be used as a reference to design new microwave absorbers with high absorption performances. (C) 2017 Elsevier B.V. All rights reserved.

ISSN号:0925-8388

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发表时间:2017-04-15

合写作者:Liu, Peijiang,Ng, Vincent Ming Hong,周金堂,Lei, Yiming,杨志鸿,Kong, Ling Bing

通讯作者:姚正军,Kong, Ling Bing,姚正军