Materialer

Material used in different magnets

Material

Ceramic magnets

Rare earth magnets

Steel magnets

Strontium

Barium

SmCo

NdFeB

AlNiCo

Properties

An/isotropic

a

a/i

a

a

a

Magnetic power

+

+/-

++

+++

0

Stability

+

0/-

++

+++

0

Mech. strength

0

0

-

0

+

Temp. dependence

+

+

+

-

+++

Price indicator

++

++/+++

-

0

0

Identifying colour

black

mat metallic

mat metallic

metallic

Sample appl

universal/low cost

universal/low cost

miniature

miniature

high temp.

+++ = extremely suitable

++ = very suitable

+ = suitable

o = average

- = less suitable