5 Terms
Home > Industry/Domain > Materials science > Magnetics
Magnetics
The branch of materials science that studies magnetism and its applications.
Industry: Materials science
Add a new termContributors in Magnetics
Magnetics
Plating/coating
Materials science; Magnetics
Most neodymium magnets are plated or coated in order to protect the magnet material from corrosion. Neodymium magnets are mostly composed of neodymium, iron, and boron. The iron in the magnet will ...
Permeability (µ)
Materials science; Magnetics
The ratio of the magnetic induction of a material to the magnetising force producing it (B/H). The magnetic permeability of a vacuum (µ o ) is 4π×10 -7 N/Amp 2 .
Permeance (P)
Materials science; Magnetics
A measure of relative ease with which flux passes through a given material or space. It is calculated by dividing magnetic flux by magnetomotive force. Permeance is the reciprocal of reluctance.
Paramagnetic materials
Materials science; Magnetics
Materials that are not attracted to magnetic fields (wood, plastic, aluminum, etc.). A material having a permeability slightly greater than 1.
Permanent magnet
Materials science; Magnetics
A magnet that retains its magnetism after it is removed from a magnetic field. A permanent magnet is "always on". Neodymium magnets are permanent magnets.
Polarity
Materials science; Magnetics
The characteristic of a particular pole at a particular location of a permanent magnet. Differentiates the North from the South Pole.
Hysteresis loop
Materials science; Magnetics
A plot of magnetising force versus resultant magnetization (also called a B/H curve) of the material as it is successively magnetised to saturation, demagnetized, magnetised in the opposite direction ...
