首页>
外国专利>
FERRITE CALCINED BODY, METHOD FOR PRODUCING FERRITE SINTERED MAGNET, AND FERRITE SINTERED MAGNET
FERRITE CALCINED BODY, METHOD FOR PRODUCING FERRITE SINTERED MAGNET, AND FERRITE SINTERED MAGNET
展开▼
机译:铁素体煅烧体,铁素体烧结磁铁的制造方法以及铁素体烧结磁铁
展开▼
页面导航
摘要
著录项
相似文献
摘要
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 Ca 1-x-y La x (Sr y' Ba 1-y' ) y Fe 2n-z Co z , 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 n 5.6; calcining the raw material powder mixture; pulverizing the calcined body; molding the calcined powder; and sintering the resultant green body; 0.1% or more and less than 1.5% by mass of SiO 2 being added to the raw material powder mixture, the calcined body or the calcined powder; and 0-2% by mass (as CaO) of CaCO 3 being added to the calcined body or the calcined powder.
展开▼
机译:一种方法,包括将原料粉末混合到包含Ca,La,Sr,Ba,Fe和Co的金属元素的组合物中的步骤,所述金属元素的原子比由Ca 1-xy La x(Sr y'Ba的通式表示) 1-y')y Fe 2n-z Co z,其中1-xy,x和y是坐标a:(0.470,0.297,0.233),坐标b:(0.300,0.392,0.308)定义的区域中的值),x,y和1-xy三元图中的坐标c:(0.300,0.300,0.400),坐标d:(0.400,0.200,0.400)和坐标e:(0.470,0.200,0.330) ; y'和z,n表示摩尔比,满足0.5‰y'‰1、0.2‰z <0.25、5.2 展开▼