共搜索到2826条信息,每页显示10条信息,共283页。用时:0小时0分0秒468毫秒
Improvement of microstructure and coercivity for Nd-Fe-B sintered magnets by boundary introducing low melting point alloysShuai Cao,Xiaoqian Bao,Jiheng Li,Haijun Yu,Kunyuan Zhu,Xuexu GaoState Key... to reconstruct the boundary microstructure of a sintered Nd-Fe-B magnet.The coercivity increases from 12.3 kOe for the sample free of Pr80Al20 to16.8 kOe for the sample with 2 wt% Pr80Al20.By further increasing......
Microstructural investigation of Nd-rich phase in sintered Nd-Fe-B magnets through electron microscopy付新1,韩小磊1,杜志伟1,冯海波2,李岩峰21. National Center of Analysis and Testing for Non-ferrous Metals...">The distribution, morphologies and structures of intergranular Nd-rich phase in sintered Nd-Fe-B magnets were studied through electron microscopy. Backscattered electron (BSE) imaging revealed that Nd-rich......
Microstructural investigation of Nd-rich phase in sintered Nd-Fe-B magnets through electron microscopy付新1,韩小磊1,杜志伟1,冯海波2,李岩峰21. National Center of Analysis and Testing for Non-ferrous Metals...">The distribution, morphologies and structures of intergranular Nd-rich phase in sintered Nd-Fe-B magnets were studied through electron microscopy. Backscattered electron (BSE) imaging revealed that Nd-rich......
Research of warm compaction technology on nylon bonded Nd-Fe-B magnets Xiuhai ZHANG1,Dameng YE1,Jun QU1,Zhenhua YAO1,Weihao XIONG1 (1.State Key Laboratory of Material Processing and Die & Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China) Abstract:Warm compaction and room temperature compaction were applied to prepare bonded Nd-Fe-B magnets. The results......
Coercivity enhancement mechanism of Tb-diffusion Nd-Fe-B sintered magnets studied by magneto-optical Kerr optical microscopeDan Wu1,Wei-Qiang Liu1,Ming Yue1,Qiong Wu1,Dong-Tao Zhang1,Qing-Mei Lu11...="ChDivSummary">The coercivity,microstructure,and magnetic domain structure of Nd-Fe-B sintered magnets by grain boundary diffusion process(GBDP) with TbH3 nanoparticles were systematically investigated.Compared......
Improved corrosion resistance and thermal stability of sintered Nd-Fe-B magnets with holmium substitutionJinghui Di1,2,3,Shuai Guo1,2,Ling Chen1,2,Guangfei Ding1,2,Kan Chen1,2,Ming Li1,2,Don Lee5,Aru...="ChDivSummary" name="ChDivSummary">The effects of Ho substitution for Nd on the microstructure, corrosion resistance and thermal stability of the Nd-Fe-B magnets were investigated. The(Nd,Ho)-O phase......
Improved corrosion resistance and thermal stability of sintered Nd-Fe-B magnets with holmium substitutionJinghui Di1,2,3,Shuai Guo1,2,Ling Chen1,2,Guangfei Ding1,2,Kan Chen1,2,Ming Li1,2,Don Lee5,Aru...="ChDivSummary" name="ChDivSummary">The effects of Ho substitution for Nd on the microstructure, corrosion resistance and thermal stability of the Nd-Fe-B magnets were investigated. The(Nd,Ho)-O phase......
of sintered Nd-Fe-B magnets.The optimum thermal stability of sintered Nd-Fe-B magnets was obtained when the content of Nb was 1.0 at.%.The maximum impact toughness of sintered Nd-Fe-B magnets was obtained when the content of Nb was 1.5 at.%,but the magnetic properties of sintered Nd-Fe-B magnets drastically deteriorated when the content of Nb increased from 1.0 at.% to 1.5 at.%.The microstructure showed......
of sintered Nd-Fe-B magnets.The optimum thermal stability of sintered Nd-Fe-B magnets was obtained when the content of Nb was 1.0 at.%.The maximum impact toughness of sintered Nd-Fe-B magnets was obtained when the content of Nb was 1.5 at.%,but the magnetic properties of sintered Nd-Fe-B magnets drastically deteriorated when the content of Nb increased from 1.0 at.% to 1.5 at.%.The microstructure showed......
plasma sintering (SPS) and subsequent hot deformation. The influence of sintering temperature on the structure and magnetic properties of the spark plasma sintered Nd-Fe-B magnets were studied. The remanence Br, intrinsic coercivity Hcj, and the maximum energy product (BH)max, of sintered Nd-Fe-B magnets first increase and then decrease with the increase of sintering temperature, TSPS, from 650 °C......