Publications in Scientific Journals:
P. Tozman, M. Venkatesan, G. A. Zickler, J. Fidler, Jmd Coey:
"Enhanced energy product in Y-Co-Fe magnets intermediate between Nd-Fe-B and ferrite";
Applied Physics Letters,
107
(2015),
032405-1
- 032405-4.
English abstract:
The hysteresis of ball-milled Fe-doped YCo5 powder has been optimized by controlling the temperature and time for rapid annealing under vacuum and argon. The crystallite size is only 25 nm; yet, it has been possible to field align Y(Co,Fe) powder with a 5-20 μm grain size in a 5 T field to obtain a remanence ratio of 0.65, due to texture in the ball-milled powder. The nominal energy product of the powder is 140 kJ/m3. A pressed magnet with 78% of theoretical density has an energy product of 65 kJ/m3. This magnet could fill the gap between oriented ferrite (34 kJ/m3) and oriented Nd-Fe-B (350 kJ/m3).
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1063/1.4927306
Created from the Publication Database of the Vienna University of Technology.