摘要:
Provided are a three-dimensional net-like aluminum porous body in which the diameter of cells in the porous body is uneven in the thickness direction of the porous body; a current collector and an electrode each using the aluminum porous body; and methods for producing these members. The porous body is a three-dimensional net-like aluminum porous body in a sheet form, for a current collector, in which the diameter of cells in the porous body is uneven in the thickness direction of the porous body. When a cross section in the thickness direction of the three-dimensional net-like aluminum porous body is divided into three regions of a region 1, a region 2 and a region 3 in this order, the average cell diameter of the regions 1 and 3 is preferably different from the cell diameter of the region 2.
摘要:
A reed switch 10 includes a cylindrical glass tube 30 and a plurality of reeds 20 fixed to the glass tube 30 in a state where an end side including a contact point portion 22 of each of the reeds 20 is inserted in the glass tube 30. The reeds 20 are each produced by forming, by plastic working, a contact point portion 22 on an end side of a wire for a reed switch. The wire for a reed switch is composed of an iron-group alloy containing, by percent by mass, 1% or more and 10% or less of Fe, 10% or more and 35% or less of Ni, and the balance being Co and impurities and having a cubic crystal structure. The wire has a Curie temperature of 900°C or higher and a wire diameter of 1 mm or less. The wire is composed of a ternary alloy having a particular composition. Therefore, the wire has a high Curie temperature, a low resistance, and a particular structure and thus has good workability.
摘要:
A porous metal body containing continuous pores and having a low oxygen content is provided by decomposing a porous resin body that contains continuous pores and has a layer of a metal thereon by heating the porous resin body at a temperature equal to or less than the melting point of the metal while the porous resin body is immersed in a first molten salt and a negative potential is applied to the metal layer; and a method for producing the porous metal body is provided.
摘要:
Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed bysuchbonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of 10nm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.
摘要:
There is provided a wire for a reed switch used for a material of a reed piece comprised by a reed switch, the wire being composed of an iron-group alloy containing Fe and 0 mass % or more and less than 10 mass % of Ni, with a total content of the Fe and the Ni satisfying 10 mass % or more and less than 20 mass %, with a balance of Co and an impurity, the iron-group alloy having a cubic crystal structure, the wire having a Curie temperature of 900°C or higher, the wire having a specific resistance of 15 µΩ • cm or less at normal temperature, a ratio of a thermal expansion coefficient of a glass tube comprised by the reed switch to a thermal expansion coefficient of the wire for the reed switch being 90% or more, the wire having a diameter of 1 mm or less.
摘要:
A substrate (1) of the present invention includes a copper layer (2), an alloy layer (3) containing copper and nickel, formed on the copper layer (2), a nickel layer (4) formed on the alloy layer (3), and an intermediate layer (5) formed on the nickel layer (4). The concentration of nickel in the alloy layer (3) at the interface between the alloy layer (3) and the nickel layer (4) is greater than the concentration of nickel in the alloy layer (3) at the interface between the alloy layer (3) and the copper layer (2). According to the present invention, there can be provided a substrate (1) that allows the AC loss of a superconducting wire (7) to be reduced, a method of producing a substrate (1), a superconducting wire (7), and a method of producing a superconducting wire (7).
摘要:
The present invention relates to a method of producing a substrate, including the steps of preparing a substrate having a nickel layer (3) formed on a copper layer (2) through plating, subjecting the nickel layer (3) to thermal treatment at 800-1000°C, and epitaxial-growing an intermediate layer (4) on the nickel layer (3), after the step of subjecting the nickel layer (3) to thermal treatment. According to the present invention, there can be provided a substrate that allows the orientation and flatness at the surface of a nickel layer (3) to be improved, and a method of producing the substrate.