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Order‐disorder transition and magnetic properties of Fe‐6.5Si alloy powder cores
Author(s) -
Jang Pyungwoo,
Lee Bonghan,
Choi Gwangbo
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200777121
Subject(s) - eddy current , materials science , annealing (glass) , electrical resistivity and conductivity , alloy , lubricant , magnetostriction , condensed matter physics , hysteresis , metallurgy , composite material , analytical chemistry (journal) , magnetic field , chemistry , electrical engineering , physics , quantum mechanics , engineering , chromatography
Magnetic properties of Fe‐6.5%Si powder compact cores were analyzed when cores were annealed at 400 – 800 °C for up to 960 min. Hysteresis losses were larger than eddy current lossed in all cores. With increasing annealing temperature core loss decreased while eddy current loss showed minimum when annealed at 500 °C. Variation of DC and AC magnetic properties with annealing temperature and time could be successfully explained by order‐disorder transition, magnetostriction, resistivity, lubricant burn‐off, and surface oxidation of particles. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)