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Glossary - I |
Irreversible loss
Isotropic magnets
Initial permeability
Impulse magnetiser
Intrinsic coercivity
Irreversible loss
Not recoverable reductions of magnetic properties, due to many factors (temperature, self-demagnetisation, ageing, metallurgical changes, etc.). It is possible to distinguish between permanent losses and losses that could be recoverable by new magnetization.
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Isotropic magnets
Isotropic magnets have no preferred direction. Generally, the properties are lower than anisotropic magnets, but it is possible to magnetize and then use the magnet in every direction.
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Initial permeability
µi the slope of the normal induction curve at zero magnetizing force
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Impulse magnetiser
See magnetiser
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Intrinsic coercivity
Hci, the magnetising force required to bring to zero the intrinsic induction (J) of a magnetic material.
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