Abstract: A method for manufacturing a carbon nanostructure according to the present invention includes a preparation step of preparing a base body, an oxidization step and a step of growing a carbon nanostructure. In the step of preparing a base body, a base body with at least a part of a contact portion or an integral portion of a catalyst member and a separation member having been oxidized is prepared. In the step of growing a carbon nanostructure, a carbon nanostructure is grown in a separation interface region between the catalyst member and the separation member. The step of growing a carbon nanostructure includes at least one of a step of locally supplying a source gas to a portion of the catalyst member facing the separation interface region where the carbon nanostructure is being grown, and a step of locally heating the separation interface region.

Abstract: A porous member includes a base member and carbon nanostructures. The base member includes a porous body having a porosity of more than or equal to 80%. The carbon nanostructures are formed on a surface of the base member, and have a width of less than or equal to 100 nm. A catalyst member includes a catalyst arranged on surfaces of the carbon nano structures.

Abstract: An apparatus for manufacturing a carbon nanostructure and a method for manufacturing a carbon nanostructure that can achieve an increase in length and shape stabilization of the carbon nanostructure can be obtained. A manufacturing apparatus for a carbon nanostructure includes a catalyst member on which a carbon nanostructure is grown, a source gas supply unit and a source gas supply pipe, a coil, and a heater. The source gas supply unit and the source gas supply pipe supply the catalyst member with carbon for forming the carbon nanotube. The coil applies a gradient magnetic field (e.g., a cusped magnetic field indicated by magnetic flux line whose magnetic field strength gradually increases from one surface of the catalyst member to the other surface opposite to the one surface. The heater heats the catalyst member.

Abstract: There is provided a method for manufacturing a carbon nanostructure with reduced occurrence of a bend and the like. The method for manufacturing a carbon nanostructure according to the present invention includes the steps of: preparing a base body formed of a catalyst member including a catalyst and a separation member that are in contact with or integral with each other (preparation step); oxidizing at least a part of a contact portion or integral portion of the catalyst member and the separation member (oxidation step); bringing a carbon-containing source gas into contact with the catalyst member and/or the separation member (CNT growth step); and growing a carbon nanostructure (CNT growth step). In the CNT growth step, the carbon nanostructure is grown in a separation interface region between the catalyst member and the separation member, by heating the base body while separating the separation member from the catalyst member.

Abstract: An oxide superconducting thin film wherein nanoparticles functioning as flux pins are dispersed in the film is provided. The oxide superconducting thin film wherein the nanoparticles in the oxide superconducting thin film have a dispersing density of 1020 particles/m3 to 1024 particles/m3 is provided. The oxide superconducting thin film wherein the nanoparticles have a particle diameter of 5 nm to 100 nm is provided. A method of manufacturing an oxide superconducting thin film wherein a predetermined amount of a solution obtained by dissolving nanoparticles functioning as flux pins in a solvent is added to a solution obtained by dissolving an organometallic compound in a solvent to prepare a source material solution for an oxide superconducting thin film, and the source material solution is used to manufacture the oxide superconducting thin film through a coating-pyrolysis process is provided.

Abstract: There are provided a carbon wire using CNT or a similar carbon filament having a sufficiently low electrical resistance value, and a wire assembly employing that carbon wire. A carbon wire includes an assembly portion and a graphite layer. The assembly portion is configured of a plurality of carbon filaments implemented as carbon nanotubes in contact with one another. The graphite layer is provided at an outer circumference of the assembly portion.

Abstract: A carbon nanostructure's geometry and electrical characteristics can be controlled. A method for processing a carbon nanostructure according to the present invention includes the steps of: preparing a carbon nanostructure (e.g., a carbon nanotube) (a CNT preparation step); and exposing the carbon nanotube to an energy beam (e.g., an electron beam) while vibrating the carbon nanotube (an exposure step). This facilitates modifying the carbon nanotube in length and electrical characteristics.

Abstract: 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.

Abstract: An apparatus for manufacturing a carbon nanostructure and a method for manufacturing a carbon nanostructure that can achieve an increase in length and shape stabilization of the carbon nanostructure can be obtained. A manufacturing apparatus for a carbon nanostructure includes a catalyst member on which a carbon nanostructure is grown, a source gas supply unit and a source gas supply pipe, a coil, and a heater. The source gas supply unit and the source gas supply pipe supply the catalyst member with carbon for forming the carbon nanotube. The coil applies a gradient magnetic field (e.g., a cusped magnetic field indicated by magnetic flux line whose magnetic field strength gradually increases from one surface of the catalyst member to the other surface opposite to the one surface. The heater heats the catalyst member.

Abstract: There are provided a carbon wire using CNT or a similar carbon filament having a sufficiently low electrical resistance value, and a wire assembly employing that carbon wire. A carbon wire includes an assembly portion and a graphite layer. The assembly portion is configured of a plurality of carbon filaments implemented as carbon nanotubes in contact with one another. The graphite layer is provided at an outer circumference of the assembly portion.

Abstract: The present invention relates to a method of manufacturing a carbon nanostructure for growing crystalline carbon by vapor deposition from a crystal growth surface of a catalytic base including a catalytic material, and in particular, to a method of manufacturing a carbon nanostructure where at least two gases including a feedstock gas are brought into contact with the catalytic base simultaneously. Preferably, the at least two gases are constituted by at least one feedstock gas and at least one carrier gas. Preferably, the carrier gas is brought into contact with the crystal growth surface, and the feedstock gas is brought into contact with at least a part of a region except for the crystal growth surface with which the carrier gas has been brought into contact. Preferably, the material gas contains an ion, and further preferably, it contains a carbon ion.

Abstract: A method of producing a carbon nanostructure is provided which can increase evenness of a shape and a purity of the carbon nanostructure and can reduce a production cost. In a method of producing a carbon nanostructure, a carbon crystal is grown by vapor phase epitaxy from a crystal growth surface of a catalyst base including a catalyst material, and the catalyst base is formed by diameter-reduction processing. The catalyst base is preferably formed as an aggregate including an arrangement of a plurality of catalyst structures each formed with a non-catalyst material, a material not having a substantial catalytic function for growth of the carbon crystal, formed on at least a portion of a side surface of the catalyst material of a columnar shape having the crystal growth surface as a top surface.

Abstract: 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.

Abstract: A method of manufacturing carbon nanostructures that allows carbon nanostructures having more uniform shape to be produced in high purity and in a stable manner is provided. The present invention relates to a method of manufacturing a carbon nanostructure for growing crystalline carbon by means of vapor deposition from a crystal growth surface of a catalytic base including a catalytic material, and in particular, to a method of manufacturing a carbon nanostructure where at least two gases including a feedstock gas are brought into contact with the catalytic base simultaneously. Preferably, the at least two gases are constituted by at least one feedstock gas and at least one carrier gas. Preferably, the carrier gas is brought into contact with the crystal growth surface, and the feedstock gas is brought into contact with at least a part of a region except for the crystal growth surface with which the carrier gas has been brought into contact.

Abstract: A method of producing a carbon nanostructure is provided which can increase evenness of a shape and a purity of the carbon nanostructure and can reduce a production cost. In a method of producing a carbon nanostructure, a carbon crystal is grown by vapor phase epitaxy from a crystal growth surface of a catalyst base including a catalyst material, and the catalyst base is formed by diameter-reduction processing. The catalyst base is preferably formed as an aggregate including an arrangement of a plurality of catalyst structures each formed with a non-catalyst material, a material not having a substantial catalytic function for growth of the carbon crystal, formed on at least a portion of a side surface of the catalyst material of a columnar shape having the crystal growth surface as a top surface.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method of producing a carbon nanostructure is provided which can increase evenness of a shape and a purity of the carbon nanostructure and can reduce a production cost. In a method of producing a carbon nanostructure, a carbon crystal is grown by vapor phase epitaxy from a crystal growth surface of a catalyst base including a catalyst material, and the catalyst base is formed by diameter-reduction processing. The catalyst base is preferably formed as an aggregate including an arrangement of a plurality of catalyst structures each formed with a non-catalyst material, a material not having a substantial catalytic function for growth of the carbon crystal, formed on at least a portion of a side surface of the catalyst material of a columnar shape having the crystal growth surface as a top surface.