7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275)最新文献

Distributions On Localized Magnetic Properties Of Three-phase Induction Motor Model Core 三相感应电动机模型铁心局部磁特性的分布

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1999-05-18 DOI: 10.1109/INTMAG.1998.737294

M. Enokizono, M. Morikawa, S. Fujiyama, J. Sievert, I. Serikawa

引用次数: 9

Incoherent magnetization reversal process in discontinuous Fe/sub 50/Cp/sub 50//Ag multilayer thin films 不连续Fe/sub 50/Cp/sub 50/ Ag多层薄膜的非相干磁化反转过程

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-12-01 DOI: 10.1109/INTMAG.1998.742113

Po-Cheng Kuo, Y. D. Yao, Jau-Yuan Chen, H. C. Chiu

{"title":"Incoherent magnetization reversal process in discontinuous Fe/sub 50/Cp/sub 50//Ag multilayer thin films","authors":"Po-Cheng Kuo, Y. D. Yao, Jau-Yuan Chen, H. C. Chiu","doi":"10.1109/INTMAG.1998.742113","DOIUrl":"https://doi.org/10.1109/INTMAG.1998.742113","url":null,"abstract":"The possibility of incoherent magnetization reversal process in annealed Fe/sub 50/Co/sub 50//Ag multilayer thin films has been studied. Small magnetoresistance was measured in as-deposited films; however, after annealing above 150/spl deg/C, the highly mobile Ag atoms form bridges between the Ag layers, and the magnetoresistance increases. For example, after annealing at 225/spl deg/C for 30 minutes, the TEM photographs show clearly the cross section of a discontinuous multilayer structure, the coercivity is relatively small, and the magnetoresistance reaches its largest value. This is explained by the formation of elongated clusters of disk-like ferromagnetic FeCo particles, the exchange coupling between these particles is weak due to the presence of Ag layer between them. In this case, an incoherent magnetization reversal process is assumed to be dominant. For samples annealed above 250/spl deg/C, these disk-like ferromagnetic particles within a column grow larger due to diffusion. The exchange interaction increase due to the Ag atoms migrating to the bridges between the columns and decreasing the distance between disk-like ferromagnetic particles. The coercivity of the film then increases, and a coherent magnetization reversal process is assumed to become dominant.","PeriodicalId":119892,"journal":{"name":"7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130277377","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

Identification Of Microstructure Effects In Magnetic Loss Behavior Of 3.2% SiFe N.O. Electrical Steels By Means Of Statistical Power Loss Model 基于统计功率损耗模型的3.2% SiFe n . o电工钢磁损耗行为的微观结构影响研究

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.737285

G. Bán, P. E. Di Nunzio, S. CicaIe, T. Belgrand

{"title":"Identification Of Microstructure Effects In Magnetic Loss Behavior Of 3.2% SiFe N.O. Electrical Steels By Means Of Statistical Power Loss Model","authors":"G. Bán, P. E. Di Nunzio, S. CicaIe, T. Belgrand","doi":"10.1109/INTMAG.1998.737285","DOIUrl":"https://doi.org/10.1109/INTMAG.1998.737285","url":null,"abstract":"In this work systematic experiments were carried out to attempt the identification of microstructural effects (texture, grain size) on the polarization dependence of internal coercive field V/sub 0/ and hysteresis loss P/sub hys/, determined by statistical power loss model (SPLM). Experiments were performed on 0.35 mm thick 3.2 wt% SiFe non-oriented (NO) electrical steel, with different grain size and almost the same crystallographic texture. From each material Epstein samples were cut at different angles to the rolling direction (RD). Loss separation and fitting process was carried out, according to the SPLM, for determining V/sub 0/ and P/sub hys/ as a function of the polarization. Three synthetic parameters were proposed in the 0.3 T-1.2 T polarization range, where the model was found to be valid: two coefficients P/sup 0//sub (hya/) and n(1) to represent the hysteresis loss according to an exponential law and an average value of the internal coercive field V/sup (avg/)/sub 0/ over the investigated polarization range. The dependence of V/sup (avg/)/sub 0/, P/sup 0//sub (hys/) and n(1) on the grain size and texture has been clearly identified, resulting in a single texture dependent behavior for both quasistatic and dynamic properties. All the results obtained from fitted P/sub hys/ values were confirmed by quasi-static measurements. A theoretical model, based on the measured orientation distribution function (ODF) has been proposed to reproduce the obtained texture dependence.","PeriodicalId":119892,"journal":{"name":"7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275)","volume":"113 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121013080","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: 11

Prototype Microactuators Driven by Magnetostrictive Thin Layers 磁致伸缩薄层驱动微致动器原型

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.742213

S. Lim, Y. Choi, S.H. Han, H. Kim, J. Choi, C. Ahn

引用次数: 16

A Novel Design Approach For Grasping Broad Characteristics Of Magnetic Shielding Problems 一种掌握磁屏蔽广泛特性问题的新设计方法

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.742613

S. Wakao, T. Onuki, J. Im, T. Yamamura

引用次数: 9

High Gradient Magnetic Separation of a Biologically Precipitated FeS Adsorbent using Sulphate Reducing Bacteria 硫酸盐还原菌对生物沉淀FeS吸附剂的高梯度磁分离

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.737131

B. Coe, R. Gerber

引用次数: 5

Measurement of Oxygen Pressure Increase in Magnetic Field 磁场中氧压升高的测量

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.735565

N. Hirota, J. Nakagawa, K. Kitazawa

引用次数: 3

Cogging Torque Reduction of a Single-Phase Brushless DC Motor 单相无刷直流电动机的齿槽转矩减小

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.742225

Derray Huang, T. Ying, Shyh-Jier Wang, Chimou Zhou, Ying-Kwang Lin, Kai-Wen Su, Chung-I G. Hsu

引用次数: 31

A Novel Combined Lift and Propulsion System for a Steel Plate Conveyance by Electromagnets 一种新型电磁铁输送钢板的升力与推进联合系统

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.742232

H. Hayashiya, D. Iizuka, H. Ohsaki, E. Masada

引用次数: 27

A New Bi-directional Inductive Force Sensor 一种新型双向感应力传感器

7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275) Pub Date : 1998-07-01 DOI: 10.1109/INTMAG.1998.742582

C. Gonin, V. Lemarquand

{"title":"A New Bi-directional Inductive Force Sensor","authors":"C. Gonin, V. Lemarquand","doi":"10.1109/INTMAG.1998.742582","DOIUrl":"https://doi.org/10.1109/INTMAG.1998.742582","url":null,"abstract":"This paper presents a new kind of inductive force sensor that gives the amplitude and the direction of the force in a plane, and that is different from the lately developed technologies utilizing the magnetostrictive or magnetoresistive effect. It is constituted of a magnetic circuit with airgaps that vary in length with the applied force. When a force is exerted, a bar is bent and one of the airgaps becomes wider, the reluctance of the corresponding magnetic circuit increases and the inductance of the coil located on this circuit decreases; the other airgap becomes narrower. The bending of the bar is proportional to the applied force, so, the inductance variations are an image of this force. The use of two coils leads to a differential structure. The same construction is done to measure the force in the orthogonal direction. This structure gives the two components of a force in a plane. The sensor is studied first to optimize its geometry with regard to the dimensional parameters. An optimum is found that gives the maximum airgap variations for a given force, and so the maximum signal variations. A magnetic study is done with finite elements calculations. A prototype was built to measure lift and drag of a rudder on a ship.","PeriodicalId":119892,"journal":{"name":"7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126460745","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: 9