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Title: Effect of oxidation degree on electromagnetic properties of Mn-Zn ferrite

Abstract

The effect of oxygen partial pressure during sintering process on the electromagnetic properties of Mn-Zn ferrites has been studied. Equilibrium oxygen partial pressure was precisely controlled according to log P{sub O{sub 2}} = A {minus} 14540/T(K). At low oxygen partial pressure, significant Zn volatilization as well as loss of oxygen was observed. As the oxygen parameter (A) decreased from 8.2 to 7.6, the power loss minimum and the second maximum of initial permeability moved to lower temperatures. These shifts were not clearly observed with oxygen parameters below 7.6. The core sintered at A = 7.0 showed the prominent second permeability peak.

Authors:
; ; ;
Publication Date:
Research Org.:
Sungkyunkwan Univ., Suwon (KR)
OSTI Identifier:
20000790
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SINTERING; IRON OXIDES; CONTROLLED ATMOSPHERES; MANGANESE OXIDES; ZINC OXIDES; POWER LOSSES; MAGNETIC SUSCEPTIBILITY

Citation Formats

Suh, J.J., Han, Y.H., Shin, M.S., and Song, B.M. Effect of oxidation degree on electromagnetic properties of Mn-Zn ferrite. United States: N. p., 1999. Web. doi:10.1109/20.800553.
Suh, J.J., Han, Y.H., Shin, M.S., & Song, B.M. Effect of oxidation degree on electromagnetic properties of Mn-Zn ferrite. United States. doi:10.1109/20.800553.
Suh, J.J., Han, Y.H., Shin, M.S., and Song, B.M. Wed . "Effect of oxidation degree on electromagnetic properties of Mn-Zn ferrite". United States. doi:10.1109/20.800553.
@article{osti_20000790,
title = {Effect of oxidation degree on electromagnetic properties of Mn-Zn ferrite},
author = {Suh, J.J. and Han, Y.H. and Shin, M.S. and Song, B.M.},
abstractNote = {The effect of oxygen partial pressure during sintering process on the electromagnetic properties of Mn-Zn ferrites has been studied. Equilibrium oxygen partial pressure was precisely controlled according to log P{sub O{sub 2}} = A {minus} 14540/T(K). At low oxygen partial pressure, significant Zn volatilization as well as loss of oxygen was observed. As the oxygen parameter (A) decreased from 8.2 to 7.6, the power loss minimum and the second maximum of initial permeability moved to lower temperatures. These shifts were not clearly observed with oxygen parameters below 7.6. The core sintered at A = 7.0 showed the prominent second permeability peak.},
doi = {10.1109/20.800553},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}