TY  - JOUR
AU  - Périgo, Élio A
AU  - Titov, Ivan
AU  - Weber, Raoul
AU  - Mettus, Denis
AU  - Peral, Inma
AU  - Vallcorba, Oriol
AU  - Honecker, Dirk
AU  - Feoktystov, Artem
AU  - Michels, Andreas
TI  - Effect of annealing conditions on the microstructure and magnetic properties of sintered Nd-Fe-B magnets as seen by magnetic small-angle neutron scatteringml
JO  - Materials Research Express
VL  - 5
IS  - 3
SN  - 2053-1591
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2018-06074
SP  - 036110 -
PY  - 2018
AB  - We have investigated the effect of the annealing conditions (heating rate and temperature) on themagnetic microstructure of sintered Nd-Fe-B magnets by means of magnetometry, scanning electronmicroscopy, high-energy synchrotron x-ray diffraction, and small-angle neutron scattering (SANS).While the temperature treatment has a strong effect on the coercivity (reduction by about 50% onannealing), the associated changes in the microstructure do surprisingly not show up (or at best onlyvery weakly) in the neutron-scattering signal, which probes a mesoscopic real-space length scaleranging between about 1–300 nm. On the other hand, the x-ray data reveal microstructural changes inthe Nd-rich phases, presumably due to modifications in grain-boundary regions. Moreover, weobserve an unusual diamond-shaped angular anisotropy in the SANS cross section, which stronglypoints towards the existence of texture in the nuclear microstructure.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000428807900001
DO  - DOI:10.1088/2053-1591/aab7aa
UR  - https://juser.fz-juelich.de/record/856723
ER  -