The paper described the composition and the processes of high Bs and low loss soft magnetic Mn梈n ferrite produced from refined mine powders in p]ace ofFe2Q3 . About composition , we want to ohta~n the inCormation about the influence of different raw materials mid compositions on the product抯 property by the way of comparing with the product which being made of different raw materials and compositions ,ancl also through this contrasts ,we get the best raw materjais and composition. About processes, we also try some new processes in order to obtain better product.
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