Journal of Materials Science

, Volume 18, Issue 6, pp 1657–1665 | Cite as

Improvement of magnetic properties of electrical steels using a surface diffusion technique

  • A. J. Moses
  • G. J. Thursby
Papers

Abstract

The preceding paper described the general process by which the magnetic properties of electrical steels can be improved by a surface diffusion technique. This paper describes detailed effects of adding aluminium or silicon to non-oriented and grain-oriented silicon-iron. The addition of silicon proved more difficult and surface porosity tended to increase the power loss of grain-oriented steel whereas a paste containing aluminium powder was effective on all the materials although it was found that the powder size was critical. A reduction of 10% at 1.5 T in well oriented silicon-iron was achieved using the aluminium powder and an improvement in stress sensitivity of the magnetic properties also resulted.

Keywords

Polymer Aluminium Silicon Porosity Magnetic Property 

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References

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    A. J. Moses and G. J. Thursby J. Mater. Sci. 18 (1983) 1650.Google Scholar
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    H. K. Ihrig, Met. Prog. 33 (1938) 367.Google Scholar
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    S. L. Ames, G. L. Houze and W. R. Bitter, J. Appl. Phys. 40 (1970) 1577.Google Scholar
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    G. Couderchon, thesis, Grenoble (1973).Google Scholar
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    A. J. Moses and D. Davies, IEEE Trans. Mag. vMAG-16 (1980) 454.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1983

Authors and Affiliations

  • A. J. Moses
    • 1
  • G. J. Thursby
    • 1
  1. 1.Department of Electrical and Electronic EngineeringUniversity CollegeRoathUK

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