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个人信息Personal Information
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
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
能源动力 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
性别:男
学历:南京大学
学位:理学博士学位
所在单位:材料科学与技术学院
办公地点:江宁校区1号楼14楼408A
联系方式:18005152399
电子邮箱:
Facile synthesis of FeCo alloys with excellent microwave absorption in the whole Ku-band: Effect of Fe/Co atomic ratio
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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:FeCo alloy Atomic ratio Complex permittivity Complex permeability Microwave absorption
摘要:The different atomic ratios of FeCo alloys with various morphologies have been prepared through a simple liquid-thermal reduction method. It is found that the atomic ratio of ferrum and cobalt has great influence on the formation of FeCo alloys. Via adjusting Fe/Co atomic ratio (3:7, 5:5, 7:3), the surface of alloy becomes smooth gradually from distinct cone structure, and the saturation of alloys have been improved with the increase of Fe proportion. The impedance matching is also related tightly with atomic ratio and the best condition can be achieved by Fe7Co3 with lower dielectric constant and higher permeability. It is delighted to find that the optimal reflection loss (RL) value of Fe7Co3 can reach -53.6 dB at 143 GHz with a thin thickness of 1.55 mm and the RL values less than 10 dB can be gained from 11.2 to 18 GHz, which covering the whole Ku-band. The excellent performance derived from strong magnetic loss and well dielectric loss guarantees it as an ideal high-frequency microwave absorbent. (C) 2017 Elsevier B.V. All rights reserved.
ISSN号:0925-8388
是否译文:否
发表时间:2017-05-15
合写作者:成岩,李兆勇,吕华良,刘伟,刘伟,赵越,曹洁明,都有为
通讯作者:姬广斌