Introduction To The Main Components And Proportions Of Permanent Ferrite Magnets

Introduction to the main components and proportions of permanent ferrite magnets

What are the main components of sintered permanent ferrite magnetic materials? Which ingredient accounts for the largest proportion?

The most common composition of sintered ferrite is Fe₂O₃. The figure below shows the composition and proportion of ferrite materials.

Because ferrite magnets have good temperature resistance, low price and moderate performance, they have become the most widely used permanent magnets.

 

So what are the main components of NdFeB permanent magnet materials?

NdFeB permanent magnet materials are based on 32% neodymium (Nd), 64% iron (Fe), 1% boron (B), etc., with a small amount of dysprosium (Dy), terbium (Tb), cobalt (Co), Niobium (Nb), gallium (Ga), aluminum (Al), copper (Cu) and other rare earth elements are an iron-based permanent magnet material manufactured by powder metallurgy.

 

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