摘要:
A wound iron core formed by winding a thin strip of a soft magnetic alloy into a triodal form, characterized in that a Co-base amorphous magnetic alloy is used as the thin strip and that the thin strip is annealed in a magnetic field in the direction of excitation, so that the core exhibits a rectangle ratio Br/B 10 of 85% or higher in D.C. hysteresis curve. The Co-base amorphous magnetic alloy has a composition substantially expressed by: Co 100-a-b X a Y b where X represents one, two or more elements selected from a group consisting of Ti, V, Cr, Mn, Fe, Ni, Zr, Nb, Mo, Ru, Hf, Ta, W, Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb and Dy, while Y represents one, two or more elements selected from a group consisting of B, C, Al, Si, P and Ge, and wherein the following conditions are met: 0≦ a ≦15 (atom%) and 14≦ b ≦30 (atom%).
摘要:
This invention provides a method for producing an oxide superconducting material of a layered perovskite structure comprising Cu and O as basic constituting elements which has a uniform texture and is markedly high in sintered density and current density. This method comprises previously reacting CuO as one raw material with a carbonate, an oxide or a mixture thereof as another raw material to produce an intermediate product or intermediate products containing Cu and O and then finally reacting these intermediate products with each other (in case two or more intermediate products are produced) or the intermediate product with other raw material (in case only one intermediate product is produced) to produce an oxide of layered perovskite structure.
摘要:
A ferrite magnet having a basic composition represented by the following general formula: (A 1-x R x )O·n[(Fe 1-y M y ) 2 O 3 ] by atomic ratio, wherein A is Sr and/or Ba, R is at least one of rare earth elements including Y, M is at least one element selected from the group consisting of Co, Mn, Ni and Zn, and x, y and n are numbers meeting the conditions of 0.01≤x≤0.4, [x/(2.6n)]≤y≤[x/(1.6n)], and 5≤n≤6, and substantially having a magnetoplumbite-type crystal structure, is obtained by uniformly mixing a compound of Sr and/or Ba with an iron compound; calcining the resultant uniform mixture; adding a compound of the R element and/or the M element to the resultant calcined powder at a pulverization step thereof; and sintering the resultant mixture. The compound of the R element and/or the M element may be added at a percentage of more than 0 atomic % and 80 atomic % or less, on an element basis, at a mixing step before calcination.
摘要:
A ferrite magnet having a basic composition represented by the following general formula: (A 1-x R x )O·n[(Fe 1-y M y ) 2 O 3 ] by atomic ratio, wherein A is Sr and/or Ba, R is at least one of rare earth elements including Y, M is at least one element selected from the group consisting of Co, Mn, Ni and Zn, and x, y and n are numbers meeting the conditions of 0.01≤x≤0.4, [x/(2.6n)]≤y≤[x/(1.6n)], and 5≤n≤6, and substantially having a magnetoplumbite-type crystal structure, is obtained by uniformly mixing a compound of Sr and/or Ba with an iron compound; calcining the resultant uniform mixture; adding a compound of the R element and/or the M element to the resultant calcined powder at a pulverization step thereof; and sintering the resultant mixture. The compound of the R element and/or the M element may be added at a percentage of more than 0 atomic % and 80 atomic % or less, on an element basis, at a mixing step before calcination.
摘要翻译:具有由以下通式表示的碱性组成的铁氧体磁体:(A 1-x R x)O·n [(Fe 1-y M y)2 O 3]的原子比,其中A是Sr和/或Ba R为包括Y的稀土元素中的至少一种,M为选自Co,Mn,Ni和Zn中的至少一种元素,x,y和n为满足条件为0.01‰×‰的数 ¤0.4,[x /(2.6n)]‰¤y‰[x /(1.6n)]和5‰‰‰¤6,基本上具有磁铅石型晶体结构,通过均匀混合 Sr和/或Ba与铁化合物的化合物; 煅烧所得的均匀混合物; 在其粉碎步骤中向所得煅烧粉末中加入R元素和/或M元素的化合物; 并烧结所得混合物。 R元素和/或M元素的化合物可以在煅烧之前的混合步骤中以元素为基准以大于0原子%和80原子%或更少的百分比加入。
摘要:
A ferrite powder for bonded magnets having a magnetoplumbite-type crystal structure, said ferrite powder for bonded magnets having a basic composition represented by the following general formula (A 1-x R x )O· n[(Fe 1-y M y ) 2 O 3 ] by atomic ratio, wherein A is Sr and/or Ba; R is at least one of the rare earth elements including Y, La being indispensable; M is at least one of the elements Co, Mn, Ni and Zn; and x, y and n are numbers meeting the following conditions 0.01 ≤ x ≤ 0.4, 0.005 ≤ y ≤ 0.04, and 5 ≤ n ≤ 6 is produced by preparing a ferrite composition having said basic composition by calcination, pulverising or milling the resultant ferrite composition, and heat-treating the pulverised ferrite powder.
摘要翻译:一种用于具有磁铅石型晶体结构的粘结磁体的铁氧体粉末,所述用于粘结磁体的铁氧体粉末具有由以下通式(A 1-x R x)表示的基本组成:[Fe 1-y M y )2 O 3],其中A是Sr和/或Ba; R是包括Y,La中的至少一种稀土元素是不可缺少的; M是元素Co,Mn,Ni和Zn中的至少一种; x,y,n为满足下列条件的数值:0.01‰¤‰¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤ 通过煅烧,粉碎或研磨所得的铁素体组合物,并对粉碎的铁素体粉末进行热处理。
摘要:
A wound iron core formed by winding a thin strip of a soft magnetic alloy into a triodal form, characterized in that a Co-base amorphous magnetic alloy is used as the thin strip and that the thin strip is annealed in a magnetic field in the direction of excitation, so that the core exhibits a rectangle ratio Br/B 10 of 85% or higher in D.C. hysteresis curve. The Co-base amorphous magnetic alloy has a composition substantially expressed by: Co 100-a-b X a Y b where X represents one, two or more elements selected from a group consisting of Ti, V, Cr, Mn, Fe, Ni, Zr, Nb, Mo, Ru, Hf, Ta, W, Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb and Dy, while Y represents one, two or more elements selected from a group consisting of B, C, Al, Si, P and Ge, and wherein the following conditions are met: 0≦ a ≦15 (atom%) and 14≦ b ≦30 (atom%).
摘要:
A sintered magnet including a ferrite with a hexagonal structure as its main phase, wherein metallic elements included in the sintered magnet are represented by the formula: Ca 1-x-x' La x Sr x' Fe 2n-y CO y , where atomic ratios x, x' and y and a molar ratio n satisfy: 0.32 ≤ x s 0.6, 0.008 ≤ x' ≤0.33, 0.16 ≤ y ≤ 0.45, x/y ≥ 1.3, and 4.3 ≤ n ≤ 5.8, respectively.
摘要翻译:1.一种烧结磁体,其特征在于,具有以六角形结构为主相的铁素体,其中,所述烧结磁铁中包含的金属元素由下式表示:Ca 1-x X'La x Sr x'Fe 2n-y CO y,其中原子比x ,x'和y,摩尔比n满足:0.32‰xs 0.6,0.008‰x‰¤0.33,0.16‰¤‰¤0.45,x / y‰¥1.3和4.3‰¤n‰5.8 , 分别。
摘要:
A ferrite powder for bonded magnets having a magnetoplumbite-type crystal structure, said ferrite powder for bonded magnets having a basic composition represented by the following general formula (A 1-x R x )O•n[(Fe 1-y M y ) 2 O 3 ] by atomic ratio, wherein A is Sr and/or Ba; R is at least one of the rare earth elements including Y, La being indispensable; M is at least one of the elements Co, Mn, Ni and Zn; and x, y and n are numbers meeting the following conditions 0.01 ≤ x ≤ 0.4, 0.005 ≤ y ≤ 0.04, and 5 ≤ n ≤ 6. Said powder is produced by preparing a ferrite composition having said basic composition by calcination, pulverising or milling the resultant ferrite composition, and heat-treating the pulverised ferrite powder.
摘要翻译:一种用于具有磁铅石型晶体结构的粘结磁体的铁氧体粉末,所述用于粘结磁体的铁氧体粉末具有由以下通式(A 1-x R x)表示的基本组成:[Fe 1-y M y )2 O 3],其中A是Sr和/或Ba; R是包括Y,La中的至少一种稀土元素是不可缺少的; M是元素Co,Mn,Ni和Zn中的至少一种; x,y,n为满足下列条件的数值:0.01‰¤‰¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤ 通过煅烧,粉碎或研磨所得的铁素体组合物,并对粉碎的铁素体粉末进行热处理。