本文主要研究内容
作者（2019）在《Tailoring the mechanical anisotropy of sintered NdFeB magnets by Pr-Cu grain boundary reconstruction》一文中研究指出：Pr83Cu17（wt%） grain boundary reconstruction was applied to prepare sintered NdFeB magnets. The effects of addition amount and annealing on the bending strength were investigated. The results show that Pr83Cu17 can not only effectively enhance the bending strength, but also change the mechanical anisotropy in two directions parallel and perpendicular to c-axis. The bending strength perpendicular to c-axis reaches 404 MPa in 10 wt% addition magnet, higher than 348 MPa along parallel direction. This change is attributed to the preferred distribution of boundary phases, i.e., ductile（Nd,Pr）-Fe-Cu phase along perpendicular direction to c-axis and（Nd,Pr）-Fe phase along parallel direction. Moreover, the Cu migration during 480 ℃ annealing is found to be related to this boundary phase distribution.
Abstract
Pr83Cu17（wt%） grain boundary reconstruction was applied to prepare sintered NdFeB magnets. The effects of addition amount and annealing on the bending strength were investigated. The results show that Pr83Cu17 can not only effectively enhance the bending strength, but also change the mechanical anisotropy in two directions parallel and perpendicular to c-axis. The bending strength perpendicular to c-axis reaches 404 MPa in 10 wt% addition magnet, higher than 348 MPa along parallel direction. This change is attributed to the preferred distribution of boundary phases, i.e., ductile（Nd,Pr）-Fe-Cu phase along perpendicular direction to c-axis and（Nd,Pr）-Fe phase along parallel direction. Moreover, the Cu migration during 480 ℃ annealing is found to be related to this boundary phase distribution.
论文参考文献
[1].Calculating the proportion of Nd-rich phase in NdFeB alloy via Matlab software[J]. 唐杰,ZHANG Lin,WEI Cheng-fu,WEN Yong-ge,YANG Li-rong,MEI Yang. Journal of Chongqing University(English Edition).2013(01)[2].Corrosion behaviors of NdFeB magnets prepared by spark plasma sintering[J]. Tao Li, Ming Yue, Aizhi Sun, Baoqin Qiu, Yaofu Xiao, and Jiuxing Zhang Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China Advanced Functional Materials Key laboratory of the Ministry of Education, Beijing Polytechnic University, Beijing 100022, China. Journal of University of Science and Technology Beijing(English Edition).2004(02)[3].Preparation Technology and Performances of Zn-Cr Coating on Sintered NdFeB Permanent Magnet[J]. 于升学,陈玲. Journal of Rare Earths.2006(02)[4].Study on Phosphating by Ultrasonic Wave at Room Temperature for Sintered NdFeB Magnet[J]. Sun Shuo1,Zhang Youping1,Yu Xintong1,Wang Yong1,2,Lou Guiyan1 1 Shenyang University of Technology,Shenyang 110870,China 2 State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Science,Shenyang 110016,China. 稀有金属材料与工程.2012(S1)[5].The Effect of HDDR Process on Magnetic Properties in NdFeB Type of Bonded Magnets[J]. 张正义,肖耀福,裘宝琴,董明. Journal of Rare Earths.1993(02)[6].粘结NdFeB磁体修型工艺研究[J]. 肖凯业,许海,郭志伟,郑文,郑晓静. 粉末冶金工业.2019(01)[7].粘结NdFeB磁体腐蚀行为及机理研究[J]. 肖凯业,许海,郑晓静,郑文,郭志伟. 粉末冶金工业.2018(05)[8].Effect of mechanical attrition on microstructure and properties of electro-deposition coatings on NdFeB[J]. 董雪亮,王德仁,曾阳庆. Journal of Rare Earths.2014(09)[9].Effect of AlN Thickness on Structure and Properties of AlN/Al Dual Protective Coatings on NdFeB by DC Magnetron Sputtering[J]. Li Jinlong,Mao Shoudong,Sun Kefei,Song Zhenlun,Huang Feng,Xue Qunji Ningbo Key Laboratory of Marine Protection Materials,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China. 稀有金属材料与工程.2012(S1)[10].NdFeB合金氢爆过程中氢的扩散研究[J]. 杨刚,杨屹,刘颖,涂铭旌. 四川大学学报(工程科学版).2011(02)
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：Tailoring the mechanical anisotropy of sintered NdFeB magnets by Pr-Cu grain boundary reconstruction论文
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