Search Results for: Permanent magnets
particles align properly. commercial ferrites can be classified as hard or soft. soft ferrites are used in transformer or electromagnetic cores. they have low coercivity and high resistivity, and contain iron, oxygen, zinc, or manganese. hard ferrites have high coercivity, and therefore are used as permanent
magnets. since ferrite permanent magnets are cheaper, and also weaker, than other available permanent magnets, they are frequently used in household products such as refrigerator magnets, and as mediums for magnetic recording. strontium ferrite , barium ferrite , and cobalt ferrite cobalt ferrite are...
https://www.americanelements.com/Ferrite.html