Ferrite (magnet) - Wikipedia, the free encyclopedia
I think it's the Barium and Strontium that makes it valuable.
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Ferrite (magnet) - Wikipedia, the free encyclopedia
I think it's the Barium and Strontium that makes it valuable.
This might help, thank to Wiki;
"Ferrites are usually non-conductive ferrimagnetic ceramic compounds derived from iron oxides such as hematite (Fe2O3) or magnetite (Fe3O4) as well as oxides of...