Rare Earth Ferrites

Garnet (rare earth ferrites) 3 M02O3i5F 2O3 M02O3 = rare earth metal oxide, e.g., Y2O3, GdsOa Microwave devices... 

However, magnetic additives such as ferrites or rare earths can be added to plastics to produce polymer magnets. 

The two main families of magnetic additives used for polymer magnets are ferrites and rare earths, which have very different characteristics. 

Table 3.20 shows property examples of plastic magnets based on ferrites or rare earths. 

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