Magnetic material and manufacturing method

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PURPOSE : To manufacture rare earth-transition metal-nitrogen base magnetic material having excellent acidproof and temperature characteristics comprising rough particles having large coersive force. CONSTITUTION : This magnetic material is represented by a general formula of RalphaFe(100-alpha-beta-gamma) MbetaNgamma, (provided R : at least one kind out of rare earth elements, M : at least one kind out of Cr, Ti, Zr, Hf, alpha, beta, gamma satisfy the following inequalities in atm%) i.e., 3<=alpha<=20, 1<=beta<=27, 17<=gamma<=25 and the phases thereof are those of rhonbohedral system or hexahedral system crystalline structures using the components of at least said R, Fe, M and N while the mean particle diameter thereof is at least 10mum.