Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
67 (1990), S. 4629-4631
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Abnormal grain growth was found in sintered Nd-Fe-B magnets which are made from powder milled after hydrogen decrepitation. The abnormal grain size in the magnets sintered at 1000 °C for 1.5 h was as large as 400 μm. The formation of abnormally large grains reduced the magnetic properties. As sintering temperature increased, the number of large grains increased and coercivity reduced. However, abnormal grain growth was rarely found when the magnets were fabricated without hydrogen decrepitation. A grain growth mechanism is discussed in relation to the effect of hydrogenation and sintering process.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.346071
Permalink
|
Location |
Call Number |
Expected |
Availability |