Effect of Variables the HDDR Processing on Magnetic Properties and Microstructure in Permanent Magnets Based on Pr-Fe-B
The first goal of this work involved the study of the effect of variables the HDDR processing, such as: the added pressure of H2 in the system, the time of heat treatment and recombination of Pr12Fe65.9Co16B6Nb0.1 alloy with the aim of improving the magnetic properties like the magnetic properties of the Pr14Fe63.9Co16B6Nb0.1 alloy (Br= 865mT and iHc= 790mT). The second aim of the work involved the characterization of HDDR powders that were analyzed by X-ray diffraction for identification and quantification of crystalline phases. These materials were analyzed by scanning electron microscopy (SEM).
Lucio Salgado and Francisco Ambrozio Filho
P.B. Santos et al., "Effect of Variables the HDDR Processing on Magnetic Properties and Microstructure in Permanent Magnets Based on Pr-Fe-B", Materials Science Forum, Vols. 660-661, pp. 302-307, 2010