2015 IEEE Magnetics Conference (INTERMAG)最新文献_第3页

Magnetic and transport properties of antiperovskite nitride Co3FeN films 反钙钛矿氮化Co3FeN薄膜的磁性和输运性质

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7156909

S. Kawai, H. Ando, H. Sakakibara, Y. Kuroki, T. Hajiri, K. Ueda, H. Asano

引用次数: 0

The proximity effect of earth conductivity change on geomagnetically induced current 大地电导率变化对地磁感应电流的邻近效应

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7157204

C. Liu, C. Lin, B. Dong, P. Zhang

引用次数: 0

Effects of alloying elements on thermal stability, glass-forming ability and soft magnetic properties of Fe-P-C-B metallic glasses 合金元素对Fe-P-C-B金属玻璃热稳定性、非晶形成能力和软磁性能的影响

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7156857

W. Zhang, H. Miu, X. Jia, Y. Li, G. Xie

{"title":"Effects of alloying elements on thermal stability, glass-forming ability and soft magnetic properties of Fe-P-C-B metallic glasses","authors":"W. Zhang, H. Miu, X. Jia, Y. Li, G. Xie","doi":"10.1109/INTMAG.2015.7156857","DOIUrl":"https://doi.org/10.1109/INTMAG.2015.7156857","url":null,"abstract":"Fe-based bulk metallic glasses (BMGs) are attractive for the engineering applications as functional materials because of their excellent soft magnetic properties, very high strength, viscous flow workability in the supercooled liquid region (ΔTx = Tx-Tg, Tg: glass transition temperature; Tg: crystallization temperature), and low material cost [1]. Recently, the thermoplastic processing has been expected to make highly functional micro-/nano-parts and electromechanical devices on the soft magnetic Fe-based BMGs by suing the viscous flow workability [1,2]. The suitable BMGs for thermoplastic processes have to possess simultaneously low Tg, large ΔTx, and high glass-forming ability (GFA). From a processing point of view, it is desirable to possess a large ΔTx which gives access to a low forming viscosity, which in turn facilitates thermoplastic forming. A low Tg implies a low processing temperature since it facilitates processing [2]. In addition, a low Tg can prevent the reaction of the metallic glasses with mold materials. However, most of the Fe-based BMGs with good soft magnetic properties exhibited high Tg, small ΔTx, low GFA or high viscosity in the supercooled liquid state, which hinder their thermoplastic formability. In this work, with the aim of developing new ferromagnetic Fe-based BMGs with low Tg, large ΔTx and high GFA for the thermoplastic processing, we investigated the effect of alloying additions on the thermal stability, GFA, magnetic properties of the Fe-P-C-B metallic glasses with low Tg.","PeriodicalId":381832,"journal":{"name":"2015 IEEE Magnetics Conference (INTERMAG)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132109391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of magnetizing parameters for multi-pole magnetic scales by Taguchi method 用田口法优化多极磁秤的磁化参数

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7157200

Z. Xu, S. Wang, Z. Zhang, T. Chin, C. Sung

引用次数: 0

Stress-annealing induced anisotropy in FeCrCuNbSiB nanocrystalline wires 应力退火诱导FeCrCuNbSiB纳米晶线的各向异性

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7157152

Y. Li, P. Liu, M. Vázquez

引用次数: 0

Vacancy formation energy in disordered FePt mediated by distortion and magnetism 畸变和磁性介导的无序FePt的空位形成能

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7156781

H. Luo, W. Xia, J. Du, J. Zhang, A. Yan, J. Liu

{"title":"Vacancy formation energy in disordered FePt mediated by distortion and magnetism","authors":"H. Luo, W. Xia, J. Du, J. Zhang, A. Yan, J. Liu","doi":"10.1109/INTMAG.2015.7156781","DOIUrl":"https://doi.org/10.1109/INTMAG.2015.7156781","url":null,"abstract":"FePt has a potential application in high-density recording medium owing to the strong uniaxial magnetocrystalline anisotropy of its L10-ordered phase, which suppresses superparamagnetism in small particles. However, in most cases, the as-prepared samples are completely disordered A1 phase (face-centered cubic) and have no uniaxial anisotropy. The subsequent annealing for ordering is usually subjected to unexpected side effects like coalescence and grain coarsening. Much attention has thus been paid to lowering the annealing temperature or accelerating the ordering process [1-3]. In close packed structures, the migration of atoms proceeds basically with the help of vacancies. Higher vacancy concentration corresponds to faster migration of atoms. Hence, the mechanism of tuning the vacancy formation energy in disordered A1-FePt is of great importance. However, investigation on this topic is rare in the literature. In view of the existence of interface strain due to lattice mismatch in the particle thin films and variation of magnetism when raising temperature for annealing, this study is dedicated to theoretical investigation of the effect of distortion and magnetism on vacancy formation energy of A1-FePt .","PeriodicalId":381832,"journal":{"name":"2015 IEEE Magnetics Conference (INTERMAG)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122801039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design method for improving the power density applied to Fan-shape of non-rare earth spoke-type PMSM 提高扇形非稀土轮辐式永磁同步电机功率密度的设计方法

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7156996

S. Ham, S. Cho, T. Jeong, H. Hong, M. Park

引用次数: 0

A tubular single-phase dual-stator flux-switching PM oscillating generator with series magnetic circuit 串联磁路的管状单相双定子磁通开关永磁振荡发电机

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7157394

P. Zheng, Y. Sui, B. Yu, L. Cheng, W. Wang

引用次数: 1

Analysis of the electromagnetic torque and the effective winding inductance of a surface-mounted PMSM under integrated battery charging operation 在电池集成充电工况下，表面贴装永磁同步电机的电磁转矩和有效绕组电感分析

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI: 10.1109/INTMAG.2015.7157412

C. Lai, N. Kar

{"title":"Analysis of the electromagnetic torque and the effective winding inductance of a surface-mounted PMSM under integrated battery charging operation","authors":"C. Lai, N. Kar","doi":"10.1109/INTMAG.2015.7157412","DOIUrl":"https://doi.org/10.1109/INTMAG.2015.7157412","url":null,"abstract":"The concept of integrated battery charger is attracting attentions these days. To design a motor drive system with an integrated charging capability, the machine windings are usually reconfigured to be used as the AC side inductors. Along with the switches from the drive circuitry, the AC side inductors form the voltage front-end to improve the power factor while charging. Most of the research work that was conducted was focused on the circuit topologies [1], [2] and the charger performances [3]. When looking into the basis, what will happen inside the machine when AC current is flowing through the machine windings? More specifically, the interactions between the electromagnetic field produced by the AC current excitation and the rotor magnetic field can cause electromagnetic torque and variations of the effective winding inductance. In this investigation, these two aspects, the produced torque and the impedance due to different winding configurations under a single-phase integrated charging operation employing a surface-mounted permanent magnet synchronous machine (SPMSM) drive system are analyzed. Experimental tests were conducted on a 21 HP, 8-pole SPMSM to verify the results.","PeriodicalId":381832,"journal":{"name":"2015 IEEE Magnetics Conference (INTERMAG)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116038479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetoresistance of (CH3NH3)PbI3 coated La0.67Sr0.33MnO3 granular composites (CH3NH3)PbI3包覆La0.67Sr0.33MnO3颗粒复合材料的磁阻

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-06-01 DOI: 10.1109/INTMAG.2015.7157755

K. Zhu, J. Chen, Q. Fan, L. Wang, Q. Xu

{"title":"Magnetoresistance of (CH3NH3)PbI3 coated La0.67Sr0.33MnO3 granular composites","authors":"K. Zhu, J. Chen, Q. Fan, L. Wang, Q. Xu","doi":"10.1109/INTMAG.2015.7157755","DOIUrl":"https://doi.org/10.1109/INTMAG.2015.7157755","url":null,"abstract":"There have been increasing research activities on organic spintronics, due to the long spin relaxation time in organic semiconductors which allows retaining the spin information. Generally, the widely used organic semiconductors are tris-(8, hydroxyquinoline) aluminum (Alq3), oleic acid, poly (3-hexyl thiophene)(RRP3HT), etc. Recently, the inorganic-organic perovskite family of materials taking the form ABX3 (A = CH3NH3+; B = Pb2+; and X=Cl-, I-, and/or Br) have attracted intensive research interests, due to the dramatically increasing efficiency in the hybric solar cell [1]. It has been reported that CH3NH3PbI3-xClx has very long electron-hole diffusion length (~100 nm for CH3NH3PbI3 and ~ 1 μm for CH3NH3PbI3-xClx) [1], suggesting the possible applicaton in organic spintronics. In this work, we prepared the CH3NH3PbI3 coated La0.67Sr0.33MnO3 (LSMO) granular composites, and the magnetoresistance (MR) was studied.","PeriodicalId":381832,"journal":{"name":"2015 IEEE Magnetics Conference (INTERMAG)","volume":"152 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114049714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0