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℃, respectively, showing good high temperature stability, which could be used in high temperature applications. Key words:rare earth permanent magnets; SmCo alloys; coercivity; temperature coefficient; [全文内容正在...Rare earth permanent magnets Sm2(Co,Fe,Cu,Zr)17 for high temperature applications WANG Jingdong1,PENG Long2,ZHANG Ming1,XU Guangliang3,YANG Qiuhui2,ZHANG Huaiwu2 (1.Southwest Institute of Applied......
Magn Magn Mater, 1982, 27: 127-130. [11] Rabenberg L, Mishra R K, Thomas C. Microstructures of precipitation-hardened SmCo permanent magnets [J]. J Appl Phys, 1982, 53: 2389-2391. [12] Yan... Influence of heat treatment on fracture and magnetic properties of radially oriented Sm2Co17 permanent magnets TIAN Jian-jun(田建军), QU Xuan-hui(曲选辉), ZHANG Shen-gen(张深根), A. FARID, TAO Si-wu(陶斯武......
nanocomposites and so-called single-phased permanent magnets. Our proposed coercivity mechanism and calculated results agree very well with available experimental data,especially the recently reported high energy products achieved in NdFeB and SmCo based hard/soft multilayers. The hybrid coercivity mechanism can be readily extended to single-phased permanent magnets with defects and other magnetic......
nanocomposites and so-called single-phased permanent magnets. Our proposed coercivity mechanism and calculated results agree very well with available experimental data,especially the recently reported high energy products achieved in NdFeB and SmCo based hard/soft multilayers. The hybrid coercivity mechanism can be readily extended to single-phased permanent magnets with defects and other magnetic......
2:17型SmCo稀土永磁材料的研究现状与趋势 彭元东1,易健宏1 (1.中南大学,粉末冶金国家重点实验室,湖南,长沙,410083) 摘要:2:17型SmCo永磁材料主要有4种类型的磁体:高温磁体,超低温度系数的磁体,辐射取向和辐射多极取向环行磁体,高电绝缘磁体.介绍了其制造方法,主要是粉末冶金(烧结)法,还原扩散法和快淬-粘结法;描述了磁体的胞状显微组织结构和成分对结构的影响;总结了其矫顽力机理,特别是高温下的矫顽力机制;并对该永磁材料的今后研究趋势作了评述. 关键词:2:17型SmCo合金; 合金成分; 制造方法; 显微组织; 矫顽力机理; [全文内容正在添加中] ......
, which could reduce the cooling time effectively. Key words:rare earth permanent magnets; SmCo alloys; melt-spun; anneal; magnetic properties; [全文内容正在添加中] ......
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,the highest service temperature of commercial 2:17type SmCo magnets is only 300°C,and many efforts have been devoted to develop novel high temperature permanent magnets.This review focuses on the development of three kinds of SmCo based magnets:2:17 type SmCo magnets,nanocrystalline SmCo magnets,and nanocomposite SmCo magnets.The oxidation protection,including alloying and surface modification......
Investigation on mechanism of magnetization reversal for nanocrystalline Pr-Fe-B permanent magnets by micromagnetic finite element methods ZHAO Sufen1,ZHENG Bo1 (1.Department of Physics, Beihang University, Beijing 100083, China) Abstract:Magnetization configurations were calculated under various magnetic fields for nanocrystalline Pr-Fe-B permanent magnets by micromagnetic finite element......
Microstructure and magnetic properties of(SmCo+FeCo)/NdFeB multicomponent nanocomposite magnets fabricated by HPTC with change in heating temperature and compositionGuangwei Huang1,2,Li Lou1,Wenpeng... of Engineering摘 要:We report the fabrication of bulk anisotropic(SmCo+FeCo)/NdFeB multicomponent nanocomposite magnets using high-pressure thermal compression......
