Subscribe to the EPMA Mailing List

Influence Of Microstructure On Hysteresis Loss Of Pure Iron Powder Core

  • : Takuya Takashita1, Naomichi Nakamura1, Yukiko Ozaki1
  • : 1JFE steel corporation
  • : PDF Download
  • : 2016

Abstract

The purpose of this study is to separate the hysteresis loss of an iron powder core into contributions from possible loss mechanisms quantitatively. Insulation coated pure iron powders were compacted and annealed to prepare ring-shaped powder cores. Their bulk and crystal grain boundary densities were controlled with the powder and core preparation conditions. The hysteresis loss decreased with a decrease in the grain boundary density, however, a grain boundary pinning model showed that its contribution to the total hysteresis loss was 50% or more, even at the lowest grain boundary density within the range of the experimental condition in this study. The bulk density contribution in this case was evaluated to be less than 10%. The loss mechanisms will be discussed in detail in comparison with steel sheet cores with the chemical composition equivalent to the iron powders.

€25.00

Non-EPMA member price shown. If you are an EPMA member please log in for your discount.
If you are logged in as a member but are still seeing this message, please contact us at website@epma.com.
If you would like to find out about becoming an EPMA member, click here.
This product is currently only available to purchase via this website to companies with a valid EU VAT Number. If you are an individual or company without an EU VAT number wishing to purchase this, please contact EPMA directly at publications@epma.com. Alternatively, past Euro PM papers are available via ProQuest and Elsevier.
*
* This field is required

Other publications you may be interested in:

Go To Top