Ceramic Hard Ferrite Materials

Ceramic ferrite magnet material was first formulated in the 1950s and then further developed in the 1960s as a less expensive alternative to other types of magnet materials.

Ceramic hard ferrite materials.

They exhibit higher levels of magnetic force than do ceramic 1 materials. A ferrite is a ceramic material made by mixing and firing large proportions of iron iii oxide fe 2 o 3 rust blended with small proportions of one or more additional metallic elements such as barium manganese nickel and zinc. Ceramic magnets are manufactured using powder technology techniques. Grades 5 and 8 ceramic materials are anisotropic and must therefore be magnetized in the manufactured dimension.

The primary raw material ferrite is made by using iron oxide and strontium carbonate. The raw materials used to produce ferrite magnets are strontium carbonate and iron oxide both of which are readily available and low in cost. The major raw materials used to manufacture ceramic magnets are iron oxide commonly known as rust and strontium carbonate. Field magnets for reed switch actuators electron beam correction and.

They are electrically nonconductive meaning that they are insulators and ferrimagnetic meaning they can easily be magnetized or attracted to a magnet. Typical applications include latches axial magnetic couplings for water meters frictionless bearings for watt hour meters stepper motors magnetic sensors ie. These materials are mixed together and then elevated in temperature to 1800 2000 degrees f. Hard ferrite magnets have excellent corrosion resistance and have normal operating capabilities between 40 c and 250 c.