Ceramic vs. Alnico???

[TedB]

"You seem to equate the terms ferrite and ceramic, and say that they have a weaker magnetic field relative to Alnico."

Ceramic is not a magnetic substance. There is actually no such thing as a 'ceramic magnet', and use of this term is a misnomer. Ceramic is the matrix, ferrite (iron) is the magnet. There is also ferrite-rubber, and other types. Iron cannot support the magnetic field density of the rare-earth types such as AlNiCo, neodymium-iron-boron, and other space-age alloys.

A simple wave of a gauss probe is all it takes to illustrate what I've stated.

 

[TedB]

For the sake of clarity, I might point out that a magnet blank can be magnetized to any desired flux density up to the maximum the matrix can support.

 

[Ed Rafalko]

When most people hear the term 'ceramic' they think of arts and crafts, the clay that you fire ina kiln. In terms of magnets and metals, it's essentially any material that's non-ferrous. it can still be metal and usually is- it's just not magnetic. Embedded within the ceramic package is the ferrous material.

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