Abstract: An electrical contact material (10) having: a conductive substrate (1) formed from copper or a copper alloy; a first intermediate layer (2) provided on the conductive substrate (1); a second intermediate layer (3) provided on the first intermediate layer (2); and an outermost layer (4) formed from tin or a tin alloy and provided on the second intermediate layer (3), wherein the first intermediate layer (2) is constructed as one layer of grains extending from the conductive substrate (1) side to the second intermediate layer (3) side, and wherein, in the first intermediate layer (2), the density of grain boundaries (5b) extending in a direction in which the angle formed by the grain boundary in interest and the interface between the conductive substrate and the first intermediate layer is 45° or greater, is 4 ?m/?m2 or less; a method of producing the same; and a terminal.

Abstract: An electrical contact material (10) having: a conductive substrate (1) formed from copper or a copper alloy; a first intermediate layer (2) provided on the conductive substrate (1); a second intermediate layer (3) provided on the first intermediate layer (2); and an outermost layer (4) formed from tin or a tin alloy and provided on the second intermediate layer (3), wherein the first intermediate layer (2) is constructed as one layer of grains extending from the conductive substrate (1) side to the second intermediate layer (3) side, and wherein, in the first intermediate layer (2), the density of grain boundaries (5b) extending in a direction in which the angle formed by the grain boundary in interest and the interface between the conductive substrate and the first intermediate layer is 45° or greater, is 4 ?m/?m2 or less; a method of producing the same; and a terminal.

Abstract: A peelable superconductive conductor comprising a superconductive conductor including a substrate and a superconducting layer which is formed on one principal surface of the substrate. The peelable superconductive conductor can further comprise a peelable carrier body, which is formed on a principal surface of the superconductive conductor on an opposite side of the surface on which the superconducting layer is formed.

Abstract: A terminal includes a connector portion, a tubular crimp portion that crimps/joins with a wire, and a transition portion joining the two portions. The tubular crimp portion is composed of a metal member including a base material of copper or copper alloy with 0.20-1.40 mm thickness and a coating layer of tin, tin alloy, nickel, nickel alloy, silver or silver alloy with 0.2-3.0 ?m thickness formed on the base material. The tubular crimp portion has a weld portion formed by butt-welding and having, in its cross-section perpendicular to a terminal longitudinal direction, a phase existing therein of tin, tin alloy, nickel, nickel alloy, silver or silver alloy greater than 0.01 ?m2. The tubular crimp portion is a closed tubular body with one end opposite to a wire-insertion-opening being closed.

Abstract: A peelable superconductive conductor comprising a superconductive conductor including a substrate and a superconducting layer which is formed on one principal surface of the substrate. The peelable superconductive conductor can further comprise a peelable carrier body, which is formed on a principal surface of the superconductive conductor on an opposite side of the surface on which the superconducting layer is formed.

Abstract: A terminal includes a connector portion, a tubular crimp portion that crimps/joins with a wire, and a transition portion joining the two portions. The tubular crimp portion is composed of a metal member including a base material of copper or copper alloy with 0.20-1.40 mm thickness and a coating layer of tin, tin alloy, nickel, nickel alloy, silver or silver alloy with 0.2-3.0 ?m thickness formed on the base material. The tubular crimp portion has a weld portion formed by butt-welding and having, in its cross-section perpendicular to a terminal longitudinal direction, a phase existing therein of tin, tin alloy, nickel, nickel alloy, silver or silver alloy greater than 0.01 ?m2. The tubular crimp portion is a closed tubular body with one end opposite to a wire-insertion-opening being closed.

Abstract: Impurities are reduced in an oxide superconducting layer and in an interface between the oxide superconducting layer and an intermediate layer. A superconducting wire rod 1 has a structure including a substrate (10), an intermediate layer (20) formed on the substrate (10), a reaction suppressing layer (28) formed on the intermediate layer (20) and mainly containing polycrystalline SrLaFeO4+?1 or CaLaFeO4+?2, in which the ?1 and the ?2 each represent an amount of non-stoichiometric oxygen, and an oxide superconducting layer (30) formed on the reaction suppressing layer (28) and mainly containing an oxide superconductor.

Abstract: Impurities in an oxide superconducting layer or at a surface of the oxide superconducting layer at an intermediate layer side are reduced. A superconducting wire rod has a configuration that includes a metal substrate 10; an intermediate layer 20 formed on the metal substrate 10 and containing a rare-earth element that reacts with Ba; a reaction suppressing layer 28 formed on the intermediate layer 20 and mainly containing LaMnO3+?1, wherein ?1 represents an amount of non-stoichiometric oxygen; and an oxide superconducting layer 30 formed on the reaction suppressing layer 28 and mainly containing an oxide superconductor containing Ba.

Abstract: Adhesiveness between a metallic substrate and a metal oxide layer is made to increase. A superconducting thin film (1) includes a metallic substrate (10), a metallic layer (22) that is formed on a main surface of the metallic substrate (10) and includes a metal element capable of being passivated as a main component, a metal oxide layer (24) that is formed on the metallic layer (22) and includes the passivated metal element as a main component, and a superconducting layer (40) that is formed on the metal oxide layer (24) directly or through an intermediate layer and includes an oxide superconductor as a main component.

Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.

Abstract: A superconducting wire has: a substrate; a superconducting layer that is layered on one main surface side of the substrate; a stabilization layer that covers a surface of the superconducting layer and another main surface of the substrate; and an insulating layer that covers a surface of the stabilization layer, and that has an identification portion that identifies the substrate side and the superconducting layer side.

Abstract: The phase transition temperature, at which the crystal lattice of LMO that constitutes an oxide layer as an intermediate layer or as a part of an intermediate layer becomes cubic, is lowered. A substrate for a superconducting wire rod includes an oxide layer (LMO layer (22)) which contains, as a principal material, a crystalline material represented by the compositional formula: Laz(Mn1?xMx)wO3+? (wherein M represents at least one of Cr, Al, Co or Ti, ? represents an oxygen non-stoichiometric amount, 0<w/z<2, and 0<x?1).

Abstract: Impurities are reduced in an oxide superconducting layer and in an interface between the oxide superconducting layer and an intermediate layer. A superconducting wire rod 1 has a structure including a substrate (10), an intermediate layer (20) formed on the substrate (10), a reaction suppressing layer (28) formed on the intermediate layer (20) and mainly containing polycrystalline SrLaFeO4+?1 or CaLaFeO4+?2, in which the ?1 and the ?2 each represent an amount of non-stoichiometric oxygen, and an oxide superconducting layer (30) formed on the reaction suppressing layer (28) and mainly containing an oxide superconductor.

Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.

Abstract: Impurities in an oxide superconducting layer or at a surface of the oxide superconducting layer at an intermediate layer side are reduced. A superconducting wire rod has a configuration that includes a metal substrate 10; an intermediate layer 20 formed on the metal substrate 10 and containing a rare-earth element that reacts with Ba; a reaction suppressing layer 28 formed on the intermediate layer 20 and mainly containing LaMnO3+?1, wherein ?1 represents an amount of non-stoichiometric oxygen; and an oxide superconducting layer 30 formed on the reaction suppressing layer 28 and mainly containing an oxide superconductor containing Ba.

Abstract: An effect of suppressing diffusion of metal elements from a substrate is high and orientation of a forcibly-oriented layer is improved. A base material (2) for a superconducting thin film includes: a substrate (10) including a metal element; a bed layer (22) formed on a surface of the substrate (10), the bed layer (22) including, as a main component, a non-orientated spinel compound that has a spinel type crystal structure and includes at least one transition metal element, Mg, and oxygen; and a forcibly-oriented layer (24) formed on a surface of the bed layer (22), the forcibly-oriented layer (24) having biaxial orientation and including, as a main component, a rock salt type compound that has a rock salt type crystal structure and includes Mg.

Abstract: Adhesiveness between a metallic substrate and a metal oxide layer is made to increase. A superconducting thin film (1) includes a metallic substrate (10), a metallic layer (22) that is formed on a main surface of the metallic substrate (10) and includes a metal element capable of being passivated as a main component, a metal oxide layer (24) that is formed on the metallic layer (22) and includes the passivated metal element as a main component, and a superconducting layer (40) that is formed on the metal oxide layer (24) directly or through an intermediate layer and includes an oxide superconductor as a main component.

Abstract: The phase transition temperature, at which the crystal lattice of LMO that constitutes an oxide layer as an intermediate layer or as a part of an intermediate layer becomes cubic, is lowered. A substrate for a superconducting wire rod includes an oxide layer (LMO layer (22)) which contains, as a principal material, a crystalline material represented by the compositional formula: Laz(Mn1?xMx)wO3+? (wherein M represents at least one of Cr, Al, Co or Ti, ? represents an oxygen non-stoichiometric amount, 0<w/z<2, and 0<x?1).

Abstract: Provided is a superconducting wire rod that is reduced in cost due to a thinner/simpler middle layer, without the properties of the superconducting wire rod (for example critical current properties) being negatively affected. A provided tape-shaped base material for superconducting wire rods comprises a diffusion preventing layer, which comprises an oxide of a group 4 (4A) element, formed on a substrate that contains iron, nickel, or chromium. Specifically, the diffusion preventing layer comprises TiO2, ZrO2, or HfO2.