write down the classification order of ferrites

Expert Solution

Ferrites can be classified into,
a) Spinel ferrites
b) Garnets
c) Hexaferrites

Spinel ferrites
Spinel ferrites have the formula AB₂O₄, where A and B are metal cations. They have high electrical resistivity and high magnetic permeability. They are used as data storage, catalysts, gas sensors etc.
Eg:Cobalt ferrite (CoFe₂O₄), Zinc ferrite (ZnFe₂O₄)

Garnets
Garnets are structurally similar to the silicate mineral garnet. It have chemical formula R₃Fe₅O₁₂, where R is yitrium or a rare earth element. They have optical transparency and used in magneto-optical applications.
Eg: Yitrium iron garnet

Hexaferrites
Hexaferrites are magnetically hard, can be represented with a general formula, MFe₁₂O₁₉, where M can be Sr, Ba, Pb or combinations of these. Being magnetically hard and very stable at high temperatures, these are used in magnetic stripes and in loud speakers
Eg: Strontium ferrite, Barium ferrite

genius_generous answered 2 years ago

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Question

write down the classification order of ferrites

Solutions

Expert Solution

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