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Calcined ferrite, sintered ferrite magnet and its production method
A method comprising the steps of mixing raw material powders to a composition comprising metal elements of Ca, La, Sr, Ba, Fe and Co, whose atomic ratios are represented by the general formula of Ca1-x-yLax(Sry′Ba1-y′)yFe2n-zCoz, wherein 1−x−y, x and y are values in a region defined by a coordinate a: (0.470, 0.297, 0.233), a coordinate b: (0.300, 0.392, 0.308), a coordinate c: (0.300, 0.300, 0.400), a coordinate d: (0.400, 0.200, 0.400) and a coordinate e: (0.470, 0.200, 0.330) in a ternary diagram of x, y, and 1−x−y, y′ and z, and n representing a molar ratio meet 0.5≦y′≦1, 0.2≦z<0.25, and 5.2
Calcined ferrite, sintered ferrite magnet and its production method
A method comprising the steps of mixing raw material powders to a composition comprising metal elements of Ca, La, Sr, Ba, Fe and Co, whose atomic ratios are represented by the general formula of Ca1-x-yLax(Sry′Ba1-y′)yFe2n-zCoz, wherein 1−x−y, x and y are values in a region defined by a coordinate a: (0.470, 0.297, 0.233), a coordinate b: (0.300, 0.392, 0.308), a coordinate c: (0.300, 0.300, 0.400), a coordinate d: (0.400, 0.200, 0.400) and a coordinate e: (0.470, 0.200, 0.330) in a ternary diagram of x, y, and 1−x−y, y′ and z, and n representing a molar ratio meet 0.5≦y′≦1, 0.2≦z<0.25, and 5.2
Calcined ferrite, sintered ferrite magnet and its production method
ODA ETSUSHI (Autor:in) / IWASAKI HIROSHI (Autor:in)
21.03.2017
Patent
Elektronische Ressource
Englisch
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