Effect of Pr-Cu Addition into Grain Boundary on Magnetic Properties and Microstructure of Sintered Nd-La-Ce-Fe-B Magnets AITranslate

5严长江,郭帅,陈仁杰,李东,闫阿儒.Phase constitution and microstructure of Ce–Fe–B strip-casting alloy[J].中国物理B：英文版,2014(10):508-512. 被引量：7

6Zhi Li,Yu-Qing Li,Wei-Qiang Liu,Dan Wu,Hao Chen,Wei-Xing Xia,Ming Yue.Origin of low coercivity of high La-Ce-containing Nd-Fe-B sintered magnets[J].稀有金属：英文版,2021,40(1):180-184. 被引量：2

5Yinji Wan,Junqi Tian,Gang Qian,Zhisong Liu,Wenjian Li,Jianming Dan,Bin Dai,Feng Yu.Ultralow specific surface area vermiculite supporting Mn-Ce-Fe mixed oxides as“curling catalysts”for selective catalytic reduction of NO with NH_(3)[J].绿色化学工程（英文）,2021,2(3):284-293. 被引量：1

Basic Information:

DOI：

Chinese Library Classification Number:TM273[一般工业技术—材料科学与工程]

Citation Information:

Different amounts of Pr₈₃Cu₁₇ alloy powder were added into grain boundary of RE-Fe-B magnets with high La-Ce content(40%of RE mass),and the effect of Pr₈₃Cu₁₇ alloy on the magnetic properties and microstructure of the magnets was systematically studied.The results show that intergranular Pr₈₃Cu₁₇ alloy can effectively improve the microstructure of the La-Ce-containing magnets,and the rare earth-rich grain boundary phase distribution becomes clear and continuous.At the same time,the Pr element diffuses into the main phase grain edge to form a core-shell structure,which effectively improves magnet coercivity.When Pr₈₃Cu₁₇ alloy addition is 5%,10%and 15%of the magnet mass,the coercivity of the magnet is in-creased by 60%,119%and 166%,respectively.When Pr₈₃Cu₁₇ alloy addition is 5%of the magnet mass,the remanence of the magnet is 12.18kGs,the coercivity is 6.205kOe,and the maximum magnetic energy product is 31.01MGOe.Due to the high content of La-Ce in the magnet,the use of La and Ce elements in rare earth magnetic materials can be effectively promoted to achieve the purpose of efficient and balanced utilization of rare earth resources.