摘要:
A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent. Each of the oxide superconducting wire, the superconducting coil and the superconducting apparatus has the aforementioned junction, and the quantity of strain on the end of the junction is reduced in the aforementioned manner.
摘要:
A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent. Each of the oxide superconducting wire, the superconducting coil and the superconducting apparatus has the aforementioned junction, and the quantity of strain on the end of the junction is reduced in the aforementioned manner.
摘要:
A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires (1, 2) with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction (L) formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction (L) when the two oxide superconducting wires (1) and (2) connected with each other are bent. Each of the oxide superconducting wire, the superconducting coil and the superconducting apparatus has the aforementioned junction (L), and the quantity of strain on the end of the junction (L) is reduced in the aforementioned manner.
摘要:
A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent. Each of the oxide superconducting wire, the superconducting coil and the superconducting apparatus has the aforementioned junction, and the quantity of strain on the end of the junction is reduced in the aforementioned manner.
摘要:
A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent. Each of the oxide superconducting wire, the superconducting coil and the superconducting apparatus has the aforementioned junction, and the quantity of strain on the end of the junction is reduced in the aforementioned manner.
摘要:
A catalyst structure that allows a carbon nanotube having a desired shape and with larger length to be obtained in a stable manner and in high purity as well as a method of manufacturing a carbon nanotube using the same are provided. The present invention relates to a catalyst structure for use in manufacturing a carbon nanotube by means of vapor deposition of crystalline carbon, having a catalytic material that forms a ring or a whirl on its crystal growth surface, and further relates to a method of manufacturing a carbon nanotube using the same. Preferably, the catalyst structure is a columnar body with its upper surface serving as the crystal growth surface, where at least part of the side of the columnar body has a non-catalytic material that has substantially no catalytic activity with respect to the growth of the crystalline carbon.
摘要:
The invention provides a hydrogen permeable structure, which can effectively prevent peeling-off of a hydrogen permeable film and hence has higher durability, and a method of manufacturing the structure. The hydrogen permeable structure has a hydrogen permeable film formed on the surface of or inside a porous support, having a thickness of not more than 2 &mgr;m, and containing palladium (Pd). The hydrogen permeable film is formed on the surface of or inside the porous support by supplying a Pd-containing solution and a reducing feed material from opposite sides of the porous support.
摘要:
A substance separation structure comprises a base material including a porous material having a continuous hole with an opening of the hole formed on at least one surface, a porous layer, formed to fill up the opening, having a hole smaller than the hole of the base material and a permeable membrane of not more than 1 &mgr;m in thickness formed on at least one surface of the base material formed with the porous layer to selectively permeate ions or neutral elements or molecules, and the surface roughness of at least one surface of the base material formed with the porous layer is not more than 0.3 &mgr;m in Rmax. The surface of the base material is polished with abrasive grains containing a porous material so that the opening of the base material can be filled up with the porous layer, and the permeable membrane is formed by ion plating.
摘要:
A method of producing a Bi—Pb—Sr—Ca—Cu oxide superconductor by thermally treating raw material comprises steps of performing first plastic deformation on the raw material, performing first heat treatment on the material being subjected to the first plastic deformation, performing second plastic deformation on the material being subjected to the first heat treatment, and performing second heat treatment on the material being subjected to the second plastic deformation.
摘要:
In order to obtain a Bi--Sr--Ca--Cu--O or Bi--Pb--Sr--Ca--Cu--O oxide superconducting wire, raw material powder is pulverized to remove particles of non-superconducting phases having large particle sizes based on difference in particle size, and thereafter the raw material powder is covered with a sheath of silver or silver alloy, so that the sheath is subjected to plastic working and the raw material powder covered with the sheath is sintered.