| 摘要 |
The present invention provides a sintered ferrite magnet (10) that contains strontium ferrite having a hexagonal crystal structure. Expressed in terms of Na2O and K2O, the combined sodium and potassium content of said sintered ferrite magnet (10) is 0.004-0.31% by mass; expressed in terms of SiO2, the silicon content is 0.3-0.94% by mass; and the sintered ferrite magnet (10) satisfies relation (1). (1) 1.3 <= (SrF+Ba+Ca+2Na+2K) <= 5.7 (In relation (1), SrF represents the amount of strontium, on a molar basis, other than the strontium constituting the strontium ferrite, and Ba, Ca, Na, and K each represent the molar-basis amount of the respective element.) |
