Sintered ferrite magnets of BaFe12O19 and SrFe12O19, in isotropic and anisotropic form, produced by a wet or dry molding process, are characterized by a low Br residual induction value compared with rare earth magnets, but by a high resistance to demagnetization, high temperature and chemical agents alike. The relative low cost and excellent reliability and performance contents underlie their very wide use in the production of permanent magnet motors for the automotive, industrial and domestic sectors, small power generators, in the electroacoustic field, sensor production, medical sector, and more.
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