摘要:
An oxide superconductor of the present invention characterized in that it comprises: a substrate 1 made of metals having a high melting temperature; at least one oxide intermediate layer 2 and 3 which is formed on at least one surface of the substrate 1; and a thick film oxide superconductor layer 5 which is formed on the oxide intermediate layer 2 and 3 the liquid phase epitaxial method in which the substrate 1 provided with the oxide intermediate layer 2 and 3 is put into a solution 7 containing the elements comprising an oxide superconductor layer, and is then pulled out from the solution 7.
摘要:
A method of pulling a crystal of a metal oxide is disclosed, in which the growth of the crystal is performed in a liquid phase having a composition which is different from the metal oxide and which contains components constituting the metal oxide. The liquid phase is in contact with a solid phase located at a position separated from the position at which the crystal of the metal oxide grows. The solid phase has a composition different from that of the metal oxide and supplies components constituting the metal oxide to the liquid phase.
摘要:
The present invention provides a tape-form oxide superconductor having a high degree of c-axis alignment and in-plane alignment and an improved Jc value. On a tape-form metal substrate which is non-magnetic or weakly magnetic and has high strength, there are sequentially formed a first intermediate layer wherein YSZ or Zr2Rx2O7 particles are deposited from a target with ion irradiation from a direction inclined to the metal substrate, a second intermediate layer of CeO2 or Y2O3 is formed and an RE1+XBa2−XCu3OY superconducting layer is formed by coating metalorganic salts containing F, followed by thermal decomposition.
摘要翻译:本发明提供具有高度c轴对准和面内对准的带状氧化物超导体和改进的Jc值。 在非磁性或弱磁性并且具有高强度的带状金属基材上,依次形成第一中间层,其中YSZ或Zr2Rx2O7颗粒从靶向与金属基底倾斜的方向进行离子辐射沉积, 形成CeO 2或Y 2 O 3的第二中间层,并且通过涂覆含有F的金属有机盐然后热分解形成RE1 + XBa2-XCu3OY超导层。
摘要:
Provided is an oxide superconducting wire material, wherein pinning of magnetic flux, under an environment in which magnetic field is applied, can be conducted efficiently towards any magnetic-field applying angle direction, to secure a high superconductive property. The oxide superconducting wire material (100) is provided with a metal substrate (110), an intermediate layer (120) formed upon the metal substrate (110), and a REBaCuO-system superconductive layer (140) formed upon the intermediate layer (120). RE comprises one or more elements selected from Y, Nd, Sm, Eu, Gd, and Ho. Oxide particles including Zr are distributed within the superconductive layer (140) as magnetic-flux pinning points (145), and the mole ratio (y) of Ba included within the superconductive layer (140) is, when the mole ratio of Zr is assumed to be x, within a range of (1.2+ax)≦y≦(1.8+ax), wherein 0.5≦a≦2.
摘要翻译:提供了一种氧化物超导线材,其中在施加磁场的环境下磁通的钉扎可以有效地向任何磁场施加角度方向传导,以确保高的超导性能。 氧化物超导线材(100)设置有金属基板(110),形成在金属基板(110)上的中间层(120)和形成在中间层(120)上的REBaCuO系超导层(140) )。 RE包括选自Y,Nd,Sm,Eu,Gd和Ho中的一种或多种元素。 包含Zr的氧化物粒子作为磁通钉扎点(145)分布在超导层(140)内,并且当考虑Zr的摩尔比时,超导层(140)中包含的Ba的摩尔比(y)为 在(1.2 + ax)@ y @(1.8 + ax)的范围内为x,其中0.5 @ a @ 2。
摘要:
A superconducting wire having at least a superconducting thin film and a stabilizing film formed one on top of another in order on a substrate having a predetermined width and a predetermined length, the superconducting wire having at least one cut made along a direction of the length of the superconducting wire, the superconducting wire being bendable at the cut in a width direction.
摘要:
Problem: To provide an REBCO superconductor which has electromagnetic properties of an extremely small magnetization in a DC magnetic field or an extremely small pinning loss in a fluctuating magnetic field and thereby enable production of a REBCO superconducting wire with an extremely small magnetization and pinning loss.Solution to Problem: A RE1Ba2Cu3O7-z superconductor characterized by having a magnetization-zero-region on its magnetization curve, wherein in the magnetization-zero-region a rate of change of magnetization remains at about zero near zero magnetization, the magnetization curve is formed when an external magnetic field turns from an increase to a decrease or from a decrease to an increase, and RE is one or more of Y, Gd, Nd, Sm, Eu, Yb, Pr, and Ho.
摘要:
A metal substrate for an oxide superconducting wire, which comprises a polycrystalline metal substrate with a rolled aggregate structure having a {100} plane which is parallel to the rolled surface and a axis which is parallel to the rolling direction, and an oxide crystal layer comprising an oxide of the polycrystalline metal and formed on a surface of the polycrystalline metal substrate, wherein at least 90% of grain boundaries in the oxide crystal layer have an inclination of 10° or less, and at least 90% of the {100} plane of the oxide crystal layer make an angle of 10° or less with the surface of the polycrystalline metal substrate.
摘要:
The present invention is configured such that, in a low AC loss oxide superconductor constituted by providing an oxide superconducting layer 6 on a substrate 1, said oxide superconducting layer 6 is separated into a plurality of filament conductors 2 in parallel to the lengthwise direction of said substrate 1 by dividing grooves 3 plurally formed in the widthwise direction of said substrate, and a high-resistance oxide 8 is formed in said dividing grooves 3. Because of the invention, it is possible to increase the insulation properties of individually divided mated filament conductors, and to obtain an oxide superconductor that has low AC loss.
摘要:
This invention provides a production process of a thick-film tape-shaped RE-type (123) superconductor having a high critical current value. The production process comprises providing a composite substrate comprising Gd2Zr2O7 and CeO2 stacked in that order onto a Hastelloy substrate, coating a raw material solution prepared by dissolving a trifluoroacetate of Y and Ba and a naphthenate of Cu onto the composite substrate, heat treating the coated composite substrate by calcination, then subjecting the calcined assembly to intermediate heat-treatment at a temperature below the temperature of heat-treatment for superconductor production, and then heat treating the assembly in an argon gas atmosphere under conditions of highest heating temperature 760° C., water vapor partial pressure 13.5%, and oxygen partial pressure 0.09% for superconductor production to produce a tape-shaped RE-type (123) superconductor comprising a YBCO superconducting film having a thickness of more than about 2 μm.
摘要翻译:本发明提供具有高临界电流值的厚膜带状RE型(123)超导体的制造方法。 制造方法包括:将包含Gd 2 Zr 2 O 7和CeO 2的复合基板依次层叠在Hastelloy基板上,涂布通过将Y和Ba的三氟乙酸盐和Cu的环烷酸盐溶解在复合基板上而制备的原料溶液, 通过煅烧,然后在低于制备超导体的热处理温度的温度下对煅烧组件进行中间热处理,然后在氩气气氛中在最高加热温度760℃的条件下热处理该组件, 水蒸汽分压为13.5%,氧分压为0.09%,生产超薄膜超薄膜的带状RE型(123)超导体,超导体的厚度大于2μm。
摘要:
Tape-shaped superconducting wires, and a superconducting coil formed from said wires, wherein a plurality of electrically separated superconducting film parts, each having a rectangular cross section and arranged in parallel, form parallel conductors, providing superconducting wires capable of containing losses incurred in the presence of alternating current (A/C). A superconducting coil is made by winding the superconducting wires, wherein the coil structure contains at least a part wherein perpendicular interlinkage magnetic fluxes acting among conductor elements of the parallel conductors by the distribution of magnetic fields generated by the superconducting coils cancel mutually in order to contain circulating current within the wires and to make shunt current uniform, thereby providing a low-loss A/C superconducting coil.