Title :
The effect of rare earth element on the magnetic properties of Nd/sub 12-x/R/sub x/Dy/sub 3/Fe/sub 78/B/sub 7/ (R=Y, La and Ce) thick films
Author :
Chang, Wen Cheng ; Chen, Steve K. ; Chiou, S.H. ; Lee, M.D.
Author_Institution :
Phys. Dept, Nat. Chung Cheng Univ., Taiwan
Abstract :
Summary form only given. NdFeB-type magnet thick films have been reported the highly potential materials for constructing microelectromechanical system (MEMS). However, high coercivity (> 10 kOe) is usually an obstacle for the NdFeB-type films to be used for fully magnetization, especially in an extremely tiny area. Accordingly, this paper focuses on the technology in fabricating the NdFeB thick films, by the substitution of Y, La or Ce for Nd, in order to achieve the goal of moderate coercive force and high energy product. Furthermore, the role of the substitution elements on the crystallinity and the magnetic properties of the films will also be discussed.
Keywords :
alloying additions; boron alloys; cerium alloys; coercive force; dysprosium alloys; ferromagnetic materials; iron alloys; lanthanum alloys; magnetic thin films; magnetisation; micromechanical devices; neodymium alloys; permanent magnets; yttrium alloys; MEMS; Nd/sub 12-x/Ce/sub x/Dy/sub 3/Fe/sub 78/B/sub 7/; Nd/sub 12-x/La/sub x/Dy/sub 3/Fe/sub 78/B/sub 7/; Nd/sub 12-x/Y/sub x/Dy/sub 3/Fe/sub 78/B/sub 7/; crystallinity; fully magnetization; high coercivity; high energy product; magnetic properties; microelectromechanical system; moderate coercive force; rare earth element; Coercive force; Crystallization; Magnetic films; Magnetic materials; Magnetic properties; Magnetization; Microelectromechanical systems; Micromechanical devices; Neodymium; Thick films;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000701
