Paper Title:
Magnetic Properties of Highly Permeable MnZn Ferrites with Addition of Phosphorous Pentoxide
  Abstract

The effects of phosphorous pentoxide on the properties of highly permeable MnZn ferrites have been investigated in this study. It was found that P2O5 addition had a pronounced effect on promoting crystalline grain growth. At the same time, porosity had an initial decrease followed by a subsequent increase with the increase of P2O5 content. Consequently, the initial permeability first increased, and then gradually decreased. Magnetic loss of the samples was also influenced by both grain size and porosity. With 0.06wt% P2O5 addition, the initial permeability reached to the maximum and the magnetic loss declined to the least. Porosity was the dominating factor to determine the ηB (hysteresis material constant) property of the ferrites. With 0.04wt% P2O5 addition, porosity decreased to its bottom, accordingly, the ηB value decreased to the least. Synthetically considering high initial permeability, low ηB value and good permeability frequency characteristic, the content of P2O5 addition had better be kept at 0.04wt%.

  Info
Periodical
Edited by
Chengming Li, Chengbao Jiang, Zhiyong Zhong and Yichun Zhou
Pages
129-132
DOI
10.4028/www.scientific.net/MSF.687.129
Citation
H. Su, H. W. Zhang, X. L. Tang, B. Y. Liu, "Magnetic Properties of Highly Permeable MnZn Ferrites with Addition of Phosphorous Pentoxide", Materials Science Forum, Vol. 687, pp. 129-132, 2011
Online since
June 2011
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