Title :
Effects of the disproportionation stage of the HDDR process on magnetic properties and microstructure of Pr13Fe80B7 alloys
Author :
Han, J. ; Liu, S. ; Wang, C. ; Du, H. ; Chen, H. ; Yang, Y.
Author_Institution :
Peking Univ., Beijing
Abstract :
It is known that hydrogenation disproportionation desorption recombination (HDDR) process can be not only used to prepare material with high coercivities, but also employed to fabricate material with high anisotropy. It has been shown that the heat treatment conditions of the disproportionation stage affect the magnetic properties and microstructure of Nd-Fe-B alloys. In this paper, the effects of the disproportionation stage of the HDDR process on magnetic properties such as remanence, coercivity and microstructure of Pr13Fe80B7 alloys are investigated. Magnetic measurements are carried out on a B-H tracer and microstructure changes are investigated by transmission electron microscopy (TEM) and high resolution TEM.
Keywords :
boron alloys; coercive force; desorption; heat treatment; hydrogenation; iron alloys; magnetic anisotropy; magnetic hysteresis; praseodymium alloys; remanence; transmission electron microscopy; B-H tracer; HDDR; Pr13Fe80B7; TEM; coercivity; disproportionation stage; heat treatment; hydrogenation disproportionation desorption recombination process; magnetic anisotropy; magnetic properties; microstructure; remanence; transmission electron microscopy; Anisotropic magnetoresistance; Coercive force; Electrons; Heat treatment; Iron alloys; Magnetic materials; Magnetic properties; Magnetic variables measurement; Microstructure; Remanence;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375819
