Soft Magnets

Soft magnetic materials are those materials that are easily magnetised and demagnetised. They typically have intrinsic coercivity less than 1000 A/m. They are used primarily to enhance and/or channel the fux produced by an electric current

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Soft magnetic materials are those materials that are easily magnetised and demagnetised. They typically have intrinsic coercivity less than 1000 A/m. They are used primarily to enhance and/or channel the fux produced by an electric current. The main parameter, often used as a figure of merit for soft magnetic materials, is the relative permeability ( mr, where mr = B/moH), which is a measure of how readily the material responds to the applied magnetic field. The other main parameters of interest are the coercivity, the saturation magnetisation and the electrical conductivity.

  • Low Hc( Coercive Force) and high magnetic conductivity
  • Easy to magnetise and demagnetise
  • low saturated fux density
  • low magnetic conductivity
  • low Curie temperature
  • low mid-frequency loss

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