国家自然科学基金(10774061)

作品数:10被引量:23H指数:4
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相关作者:李发伸王涛韩瑞韩相华伊海波更多>>
相关机构:兰州大学更多>>
相关期刊:《Chinese Physics B》《科学通报》《Science China(Physics,Mechanics & Astronomy)》《功能材料》更多>>
相关主题:羰基铁REFLECTIONPROPERTYPOWDERPARAFFIN更多>>
相关领域:理学一般工业技术文化科学电子电信更多>>
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Microwave reflection properties of planar anisotropy FesoNi50 powder/paraffin composites
《Chinese Physics B》2012年第3期442-447,共6页
Project supported by the National Natural Science Foundation of China (Grant No. 10774061), the Defense Industrial Technology Development Program, China (Grant No. A1420080174), and the Fundamental Research Funds for the Central Universities.
The reflection properties of planar anisotropy FesoNiso powder/paraffin composites have been studied in the microwave frequency range. The permeability of Fe50Ni50 powder/paraffin composites is greatly enhanced by int...
关键词:reflection property complex permeability microwave absorption 
Microwave reflection properties of planar anisotropy Fe_(50)Ni_(50) powder/paraffin composites被引量:1
《Chinese Physics B》2012年第3期442-447,共页位建强 张钊琦 韩瑞 王涛 李发伸 
Project supported by the National Natural Science Foundation of China (Grant No. 10774061);the Defense Industrial Technology Development Program,China (Grant No. A1420080174);the Fundamental Research Funds for the Central Universities
The reflection properties of planar anisotropy Fe50Ni50 powder/paraffin composites have been studied in the microwave frequency range.The permeability of Fe50Ni50 powder/paraffin composites is greatly enhanced by intr...
关键词:reflection property complex permeability microwave absorption 
羰基铁/有机硅环氧树脂复合材料的电磁性质及微波吸收性质被引量:4
《功能材料》2011年第2期218-221,共4页崔荣振 王博翀 王涛 李发伸 
国家自然科学基金资助项目(10774061)
为了解决无线电通信技术高速发展带来的日益严重的电磁污染和干扰,电磁波吸收材料的研究变得极为重要。制备了羰基铁粉分散在不同基质(石蜡,环氧树脂和有机硅环氧树脂)的复合材料的样品。在3种不同基质样品(羰基铁粉体积分数40%)中,以...
关键词:微波吸收 反射损耗 复介电常数 复磁导率 羰基铁粉 
片状羰基铁/石蜡复合材料的高频磁性被引量:7
《科学通报》2010年第26期2570-2575,共6页韩瑞 位建强 韩相华 伊海波 王涛 李发伸 
国家自然科学基金资助项目(10774061)
以球形羰基铁粉为原料,在不同转速下球磨,比较了不同球磨速度下样品的形貌和静态磁性.将球磨后片状样品以50%体积浓度与石蜡均匀混合制备复合材料,利用同轴线法在0.1~18GHz频率范围内研究其复数磁导率随频率的变化.球磨后片状样品的低...
关键词:片状羰基铁粉 旋转取向 复数磁导率 
High frequency behaviours and Mssbauer study of field annealed FeCuNbSiB alloy ribbons
《Chinese Physics B》2010年第9期570-575,共6页马小明 李志伟 位建强 王涛 李发伸 
supported by National Natural Science Foundation of China (Grant No.10774061)
This paper investigates the high frequency behaviours and magnetic anisotropy of rapidly solidified FINEMET (Fe73.5Si13.sBgNb3Cul) alloy ribbons annealed in an applied magnetic field. It finds that the ribbons annea...
关键词:FINEMET field annealing MSssbauer spectrum high frequency 
溶胶-凝胶法制备的钡铁氧体的微结构和磁性能被引量:4
《兰州大学学报(自然科学版)》2010年第4期101-105,共5页潘伟伟 韩瑞 刘锦宏 李发伸 
国家自然科学基金项目(10774061)
采用溶胶-凝胶法制备了M型纳米钡铁氧体(BaFe12O19),并进一步研究了不同pH值、煅烧温度和保温时间对样品微结构和磁性能的影响,用X射线衍射、扫描电子显微镜和振动样品磁强计对样品进行了表征和测量.当溶液pH在3以上时,比较容易生...
关键词:溶胶-凝胶法 钡铁氧体 微结构 磁性能 
Mssbauer study of the field induced uniaxial anisotropy in electro-deposited FeCo alloy films
《Chinese Physics B》2009年第11期4829-4833,共5页李志伟 杨旭 王海波 刘忻 李发伸 
Project supported by the National Natural Science Foundation of China (Grant No 10774061)
Thin ferromagnetic films with in-plane magnetic anisotropy are promising materials for obtaining high microwave permeability. The paper reports a MSssbauer study of the field induced in-plane uniaxial anisotropy in el...
关键词:ELECTRO-DEPOSITION FeCo film uniaxial anisotropy MSssbauer spectra 
First-principles study on the magnetism of different dimensional Ru systems
《Chinese Physics B》2009年第7期2953-2960,共8页朱秋香 庞华 李发伸 
Project supported by the National Natural Science Foundation of China (Grant Nos 90505007 and 10774061)
The magnetism,the magnetocrystalline anisotropy and the optical properties of the monolayer and atomic chain of 4d transition-metal Ru are investigated by using the full-potential linearized-augmented-plane-wave metho...
关键词:FIRST-PRINCIPLE ANISOTROPY optical properties 
Determination of the in-plane anisotropy field in hexagonal systems via rotational magnetization: Theoretical model and Monte Carlo simulations
《Science China(Physics,Mechanics & Astronomy)》2009年第7期978-986,共9页WANG AiMin PANG Hua 
Supported by the National Natural Science Foundation of China (Grant Nos 90505007 and 10774061)
The magnetic anisotropy field in thin films with in-plane uniaxial anisotropy can be deduced from the VSM magnetization curves measured in magnetic fields of constant magnitudes. This offers a new possibility of apply...
关键词:ROTATIONAL MAGNETIZATION CURVE magnetocrystalline ANISOTROPY IN-PLANE ANISOTROPY constant K3 
Influence of shape anisotropy on microwave complex permeability in carbonyl iron flakes/epoxy resin composites被引量:7
《Chinese Physics B》2008年第6期2263-2267,共5页温福昇 乔亮 周栋 左文亮 伊海波 李发伸 
Project supported by the National Natural Science Foundation of China (Grant Nos 90505007 and 10774061)
To explore the mechanism of carbonyl iron flake composites for microwave complex permeability, this paper investigates the feature of the flakes. The shape anisotropy was certified by the results of the magnetization ...
关键词:carbonyl iron flake complex permeability shape anisotropy Mossbauer spectroscopy 
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