Coercivity,microstructure,and thermal stability of sintered Nd-Fe-B magnets by grain boundary diffusion with TbH3 nanoparticles-中国期刊网

摘要 GrainboundarydiffusiontechniquewithTbH_3nanoparticleswasappliedtofabricateTb-lesssinteredNdFe-Bpermanentmagnetswithhighcoercivity.Themagneticpropertiesandmicrostructureofmagnetsweresystematicallystudied.Thecoercivityandremanenceofgrainboundarydiffusionmagnetareimprovedby112%andreducedby26%comparedwiththoseoftheoriginalmagnet,respectively.Meanwhile,boththeremanencetemperaturecoefficient(α)andthecoercivitytemperaturecoefficient(β)ofthemagnetsareimprovedafterdiffusiontreatment.MicrostructureshowsthatTbelementenrichesinthesurfaceregionofNd_2Fe_(14)Bgrainsandisexpectedtoexistas(Nd,Tb)_2Fe_(14)Bphase.Thus,themagneto-crystallineanisotropyfieldofthemagnetimprovesremarkably.Asaresult,thesinteredNd-FeBmagnetsbygrainboundarydiffusionwithTbH_3nanoparticlesexhibitenhancedcoercivity.

1. MAGNETIZATION BEHAVIOR IN SINTERED Nd-Fe-B MAGNETS.有色金属冶金,1990-01.
2Xiaowen Yin;Min Liu;Baicen Wan;Yu Zhang;Weiqiang Liu;Yufeng Wu;Dongtao Zhang;Ming Yue. Recycled Nd-Fe-B sintered magnets prepared from sludges by calcium reduction-diffusion process.有色金属冶金,2018-12.
3LIBo;HUJifan;WANGDongling;GUOBinglin;WANGXinlin. Investigation of the coercivity mechanism for Nd-Fe-B based magnets prepared by a new technique of strip casting.金属材料,2004-02.
4潘树明;肖跃福. Microstructure and Coercivity in High Hc Sm（Co, Cu, Fe, Zr）7.4 and Nd-Fe-B Alloys.材料科学与工程,1989-06.
5Masaaki TAKEZAWA Hiroyuki TANEDA Yuji MORIMOTO. Relationship between microstructure and magnetic domain structure of Nd-Fe-B melt-spun ribbon magnets.材料科学与工程,2015-02.
6JANG T.S. LEE D.H. YU J.H. CHOI C.J. SEO W.S. LEE Y.H.. Fabrication of ultrafine Nd-Fe-B powder by a modified reduction-diffusion process.金属材料,2006-03.
7Ren-Quan Wang;Biao Chen;Jun Li;Ying Liu;Qing Zheng. Structural and magnetic properties of backward extruded Nd-Fe-B ring magnets made by different punch chamfer radius.金属材料,2014-03.
8. Magnetic Properties of Nd8Fe83Co3B6 Nanocomposite Magnets.材料科学与工程,2000-02.
9Yu-Chao Liu;Hong-Wei Li;Kuo-She Li;Dun-Bo Yu;Jin-Ling Jin;Yang Luo;Liang Sun;Ning-Tao Quan. Magnetic properties optimization of nanocomposite Nd9Fe85B6 magnets by controlling microstructure of as-quenched ribbons.金属材料,2014-03.
10CHENYiqing CAOQingping 等. Microstructure and thermal stability behavior of a rapidly solidified Al—Ti—Fe—Cr alloy.金属材料,2002-03.

Coercivity,microstructure,and thermal stability of sintered Nd-Fe-B magnets by grain boundary diffusion with TbH3 nanoparticles

来源期刊

相关推荐

同分类资源更多

相关关键词

Coercivity,microstructure,and thermal stability of sintered Nd-Fe-B magnets by grain boundary diffusion with TbH3 nanoparticles

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多