[en] The influence of the densification step, performed by uniaxial pressing at room temperature, on the coercivity of NdFeB bonded magnets has been analyzed. The mass density does not play any role on of non-cured magnets prepared by the mentioned method. Due to the brittle and intergranular character of the Nd Fe B-based phase fracture, the nano-sized grains are not affected or the modification is negligible, which maintains unchanged. After curing, the intrinsic coercivity of themagnets is reduced as a function of the compaction pressure increase.
Disciplines :
Materials science & engineering
Author, co-author :
Perigo, Elio Alberto ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Cruz, Israel Aparecido; Institute for Technological Research (IPT)
Antunes, Bruno; Institute for Technological Research (IPT)
Braga, Ana Paola; Institute for Technological Research (IPT)
Landgraf, Fernando; Institute for Technological Research (IPT)
Language :
English
Title :
How Extrinsic Is the Coercivity in NdFeB Bonded Magnets?