Usual Glossary of magnetic material

Anisotropic Magnet

A magnet having a preferred direction of magnetic orientation.

Coercive force, Hc

The demagnetizing force, measured in Oersteds necessary to reduce the induction, B to zero after a magnet has been previously saturated.

Curie temperature, Tc

The transition temperature above which a material looses its magnetic properties.

Flux

The condition existing in a material subjected to magnetizing force. The unit of flux is the Maxwell.

Gauss

Lines of magnetic flux per square centimeter. This is a measure of flux density.

Induction, B

The magnetic flux per unit area of a section normal to the direction of flux. This is measured in Gauss.

Intrinsic Coercive Force, Hci

This is a measure of a materials ability to resist demagnetization. This is measured in Oersteds.

Irreversible Loss

This is defined as the partial demagnetizing of a magnet caused by external factors.

Isotropic magnet

A magnet material whose magnetic properties are the same in any direction.

Magnetic Field strength, H

A measurement of the magnetic ability to induce a magnetic field at a given point. This is measured in Oersteds.

Magnetic Flux

The total magnetic induction over a certain area.

Magnetizing Force, H

The magnetomotive force per unit length at any point in the magnetic circuit. this is measured in Oersteds.

Magnetomotive Force, F

The magnetic potential difference between any two points.

Maxwell

A unit of magnetic flux. One Maxwell is one line of magnetic flux.

Oersted, Oe

A unit of magnetic field strength or magnetizing force.

Orientation Direction

The direction in which an anisotropic magnet should be magnetized in order to optimize the magnetic properties.

Saturation

This is a condition where all magnetic moments have become oriented in one direction.

Stabilization

Exposing a magnet to demagnetizing influences which are expected in the application in order to prevent irreversible loss during the operation of the magnet.