Abstract:
Amorphous alloy soft magnetic powder includes a composition expressed by a composition formula in atomic ratio (FexCo1-x)100−(a+b)(SiyB1-y)aMb, where M is at least one type selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, 0.73≤x≤0.85, 0.02≤y≤0.10, 13.0≤a≤19.0, and 0≤b≤2.0; and impurities. The amorphous alloy soft magnetic powder has an average circularity of 0.85 or more, an average aspect ratio of 1.20 or less, and an average particle size of 10 μm or more and 40 μm or less. In the amorphous alloy soft magnetic powder, a rate of decrease D in magnetic permeability accompanying an increase in frequency is 15% or less.
Abstract:
An antenna core includes a laminate of a plurality of Co-based amorphous magnetic alloy thin strips in which a length ratio of a long axis to a short axis is greater than 1. 60% or more of the Co-based amorphous magnetic alloy thin strips in terms of the number of the thin strips as percentage have a line-shaped mark formed along the long axis on at least one surface thereof. An antenna includes the antenna core and a winding wound around the antenna core along the long axis.
Abstract:
A soft magnetic metal strip laminate that has high adhesion strength between metal strips, free from delamination, an excellent magnetic property, a high space factor, and a process for production thereof. A process for production of a soft magnetic metal strip laminate that includes plural soft magnetic metal strips laminated by using a polyamide acid solution includes the steps of applying the polyamide acid solution on the soft magnetic metal strip, performing semicuring heat treatment to obtain the degree of imidization of the polyamide acid solution which is in the range of 15 to 70%, laminating plural soft magnetic metal strips to each other through the polyamide acid solution, and performing the heat treatment of the heating and the hot pressing to obtain the degree of imidization of the polyamide acid solution which is more than 90%.
Abstract:
A current transformer core made of an alloy having a composition represented by the general formula: Fe100-x-a-y-cMxCuaM′yX′c (by atomic %), wherein M is Co and/or Ni, M′ is at least one element selected from the group consisting of V, Ti, Zr, Nb, Mo, Hf, Ta and W, X′ is Si and/or B, and x, a, y and c are numbers satisfying 10≦x≦50, 0.1≦a≦3, 1≦y≦10, 2≦c≦30, and 7≦y+c≦31, respectively; at least part or all of the alloy structure being composed of crystal grains having an average particle size of 50 nm or less.
Abstract translation:由具有由通式Fe100-xay-cMxCuaM'yX'c(原子%)表示的组成的合金制成的电流互感器芯,其中M是Co和/或Ni,M'是选自以下的至少一种元素: 由V,Ti,Zr,Nb,Mo,Hf,Ta和W组成的组,X'是Si和/或B,x,a,y和c是满足10 <= x <= 50,0.1 < = a <= 3,1 <= y <= 10,2 <= c <= 30和7 <= y + c <= 31; 至少部分或全部合金结构由平均粒径为50nm以下的晶粒构成。
Abstract:
A low core loss magnetic alloy with a high saturation magnetic flux density, which has a composition represented by the general formula: (Fe1-aCoa)100-y-cM′yX′c(atomic %) where M′ represents at least one element selected from V, Ti, Zr, Nb, Mo, Hf, Ta, and W, X′ represents Si and B, an Si content (atomic %) is smaller than a B content (atomic %), the B content is from 4 to 12 atomic %, and the Si content is from 0.01 to 5 atomic %, a, y, and c satisfy respectively 0.2
Abstract translation:具有高饱和磁通密度的低磁芯损耗磁性合金,其具有由以下通式表示的组成:<?in-line-formula description =“In-line Formulas”end =“lead”?>(Fe 其中M'表示选自V,Ti,Zr,Nb,Mo,Hf,Ta和W中的至少一种元素 ,X'表示Si和B,Si含量(原子%)小于B含量(原子%),B含量为4〜12原子%,Si含量为0.01〜5原子%,a ,y和c分别满足0.2 在80℃,f = 20kHz,B m = 0.2T b的条件下的单位体积 不超过15 W / kg。
Abstract:
A method and resultant device, in which metal nanoparticles are self-assembled into two-dimensional lattices. A periodic hole pattern (wells) is fabricated on a photoresist substrate, the wells having an aspect ratio of less than 0.37. The nanoparticles are synthesized within inverse micelles of a polymer, preferably a block copolymer, and are self-assembled onto the photoresist nanopatterns. The nanoparticles are selectively positioned in the holes due to the capillary forces related to the pattern geometry, with a controllable number of particles per lattice point.
Abstract:
Disclosed is a Co-base magnetic alloy excellent in high-frequency magnetic properties, of which chemical composition is represented by the following general formula, by atomic %, (Co1-aFea)100-y-cMnullyXnullc, where Mnull is at least one element selected from the group consisting of V, Ti, Zr, Nb, Mo, Hf, Sc, Ta and W; Xnull is at least one element selected from the group consisting of Si and B; and a, y and c are defined by the formulas of a
Abstract translation:公开了一种高频磁性能优异的钴基磁性合金,其特征在于,以下述通式表示化学组成按原子%表示(Co1-aFea)100-y-cM'yX'c,其中M' 是选自V,Ti,Zr,Nb,Mo,Hf,Sc,Ta和W中的至少一种元素; X'是选自Si和B中的至少一种元素; 和a,y和c分别由<0.35,1.5 <= y <= 15和4 <= c <= 30的公式定义。 合金的合金结构的至少一部分由平均粒径不大于50nm的晶粒构成。 该合金的相对初始磁导率不大于2000,适用于大电流零电压和电磁屏蔽材料等抗噪声成分,逆变器变压器,有源滤波器的扼流线圈,天线,平滑扼流线圈 ,用于激光器的电源,用于加速器的脉冲功率磁性元件。
Abstract:
A high permeability metal glassy alloy for high frequencies contains at least one element of Fe, Co, and Ni as a main component, at least one element of Zr, Nb, Ta, Hf, Mo, Ti, V, Cr, and W, and B. In the metal glassy alloy, the temperature interval &Dgr;Tx of a super cooled liquid region, which is represented by the equation &Dgr;Tx=Tx−Tg (wherein Tx represents the crystallization temperature, and Tg represents the glass transition temperature) is 20° C. or more, and resistivity is 200 &mgr;&OHgr;·cm or more.
Abstract:
A label for use in a magnetoelastic electronic article surveillance system has a strip of an amorphous alloy, forming a resonator having a resonant frequency, when activated by a magnetically semi-hard strip. The strip of amorphous alloy is fixed at one side to the magnetically semi-hard strip, and has a length of ¼ wavelength of the resonant frequency.