专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH02104677A PRODUCTION OF SUPERCONDUCTIVE MATERIAL 失效
公开(公告)号：JPH02104677A
公开(公告)日：1990-04-17
申请号：JP25541088
申请日：1988-10-11
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , SHINPO YUKIO , ONO MORIAKI , KOSUGE SHIGECHIKA , SUZUKI TERUO
IPC分类号： C23C28/00
摘要： PURPOSE:To produce a superconducting material having a high critical current density by forming a coating film of a superconducting substance having a recess on a base material, filling a flux depositing the same superconducting substance from the molten soln. into the recess, melting the flux by heating and moving the formed molten part along the base material. CONSTITUTION:A first coating film 2 of a superconducting substance such as YBa2Cu3O7-x and a second coating film 3 of the same superconducting substance having a recess 3A are successively formed on the surface of a base material such as Ni. Powder of a flux 4 consisting of Y2O3, BaO and CuO, having a lower m.p. than the superconducting substance and depositing the same superconducting substance from the molten soln. is filled into the recess 3A. Only the flux is melted by heating with a heater and the formed molten part 4A is moved along the base material 1 by moving the heater to form a subcontracting coating film 5 having the ab faces of crystals aligned in the longitudinal direction of the base material 1. A dense superconducting material having a single superconducting phase, the ab faces of crystals aligned in one direction and a high critical current density is obtd.

2. 发明专利

JPH02104658A FORMATION OF OXIDE SUPERCONDUCTING FILM BY CO2 LASER VAPOR DEPOSITION METHOD 失效
公开(公告)号：JPH02104658A
公开(公告)日：1990-04-17
申请号：JP25785388
申请日：1988-10-13
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , ONO MORIAKI , SHINPO YUKIO , KOSUGE SHIGECHIKA , SUZUKI TERUO
IPC分类号： C23C14/08 , C23C14/28 , H01B12/06 , H01B13/00
摘要： PURPOSE:To form an oxide superconducting film having the prescribed desired composition by reflecting a CO2 laser beam by a vibrating mirror, irradiating a vapor deposition source with the reflected CO2 laser beam, and allowing the grains evaporated from the vapor deposition source to adhere to the surface of a body to be subjected to vapor deposition. CONSTITUTION:A vapor deposition source 2 for yttria-stabilized zirconia, etc., and a base material 3 are disposed in a manner to be opposed to each other in a vacuum chamber 1 having a gas exhaust port 6. The above vapor deposition source 2 is irradiated with a CO2 laser beam from the outside of the vacuum chamber 1 via a laser- transmitting window 4, by which the grains evaporated from the evaporation source 2 are allowed to adhere to the surface of the base material 3 so as to be formed into a film. In the above CO2 laser vapor deposition method, the CO2 laser beam is reflected by a vibrating mirror 7 provided to the outside of the vacuum chamber 1 to undergo vibration, with which the evaporation source 2 is irradiated practically over the entire surface of the evaporation source 2. By this method, an oxide superconducting film, etc., consisting of plural components and having the prescribed desired composition can be formed on the base material 3 surface, and further, the service life of the vapor deposition source 2 can be prolonged.

3. 发明专利

JPH02103809A LOW POWER LOSS ELECTRIC CONDUCTOR 失效
公开(公告)号：JPH02103809A
公开(公告)日：1990-04-16
申请号：JP25540988
申请日：1988-10-11
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , KOSUGE SHIGECHIKA , ONO MORIAKI , KABASAWA MAKOTO , SHINPO YUKIO , SUZUKI TERUO
IPC分类号： H01B12/04
摘要： PURPOSE:To reduce power loss by means of cooling with liquid nitrogen by dispersing an oxide superconductive material particles of the particle size ranging from 0.1 to 100mmu in Cu as a matrix homogeneously in a range from 30 to 80% of volume ratio. CONSTITUTION:An oxyde superconductive material particle 2 is dispersed homogeneously in a Cu matrix 1. For the matrix 1, Cu of good conductivity with a little resistance is used to disperse the particle 2 homogeneously. When the particle size of the superconductive material is less than 0.1mmu, Tc, Jc are deteriorated due to the reaction with the matrix, while homogeneous mixture is difficult if it exceeds 100mmu, thus defining the particle size of a range from 0.1 to 100mmu. When a volume ratio of the superconductive material to the matrix is less than 30%, the effect of lowering resistance is reduced, and the consumption of liquid nitrogen is expanded, whereas elasticity is reduced when it exceeds 80%, thus defining the volume ratio of a range from 30 to 80%. Since the cooling is executed by liquid nitrogen, cost-effectiveness is achieved.

4. 发明专利

JPH01172216A PRODUCTION OF SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPH01172216A
公开(公告)日：1989-07-07
申请号：JP33109387
申请日：1987-12-26
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , KOSUGE SHIGECHIKA , ONO MORIAKI , NAKADA KIYOKAZU , SUZUKI TERUO , WATANABE ITARU
IPC分类号： H01L39/24 , C01G1/00 , C01G3/00 , C23C14/08 , C23C14/28 , H01B12/06 , H01B13/00
摘要： PURPOSE:To form a film having high superconducting characteristic on a substrate by radiating O-ions toward the surface of the substrate in a stag for depositing a compound oxide to the surface of the substrate by a laser vapor deposition process and compensating deficient amt. of oxygen in the film. CONSTITUTION:A substrate 3 (material to be subjected to vapor deposition) and a sintered body 2 of a compound oxide (vapor deposition source) contg. CuxOy group are disposed in an evacuated chamber 1. The sintered body 2 is evaporated by the irradiation with laser beam, and evaporated material is deposited to the substrate 3. In this stage, the inside of the evacuated chamber 1 is held in O2 atmosphere, and oxygen ions are radiated from an ion gun 11 toward the surface of the substrate 3.

5. 发明专利

JPS6443912A SUPERCONDUCTIVE TAPE MATERIAL 失效
公开(公告)号：JPS6443912A
公开(公告)日：1989-02-16
申请号：JP19828287
申请日：1987-08-10
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , NAKADA KIYOKAZU , KOSUGE SHIGECHIKA , ONO MORIAKI , WATANABE ITARU
IPC分类号： H01B12/06 , H01L39/24
摘要： PURPOSE:To make it possible to obtain a superconductive tape material having a stable fine superconductive film of required thickness and making a quick speed formation of a film by composing the captioned material from a tape-state metallic base material, a compound oxide superconductive layer including a CuxOy group, and a metallic layer. CONSTITUTION:The captioned material is composed of a tapestate metallic base material 1, Y-Ba-Cu-O group compound oxide superconductive layer 2 including a CUxOy group, for instance, component composition of YBa2Cu3O7-y, formed on one side surface of the material 1, and a metallic layer 3 formed on the surface of the layer 2. The material 1 is composed of any one of base materials of copper, nickel, nickel group alloy, and a copper base material wherein nickel or nickel group alloy is coated on the surface of the layer 2 side; and the layer 3 is composed of any one of layers of copper, nickel, and nickel group alloy. This enables the superconductive tape material to have an excellent superconductive characteristic, to provide required strength and flexibility, and to be simply manufactured at low cost, and in short time.

6. 发明专利

JPH02239116A PRODUCTION OF SUPERCONDUCTING ARTICLE 失效
公开(公告)号：JPH02239116A
公开(公告)日：1990-09-21
申请号：JP6046089
申请日：1989-03-13
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , SHINPO YUKIO , ONO MORIAKI , KOSUGE SHIGECHIKA , KABASAWA MAKOTO
IPC分类号： C01G3/00 , C01G1/00 , H01B13/00 , H01L39/24
摘要： PURPOSE:To form an excellent superconducting film on a base material without causing cracking by forming a mixed layer of the different constituents consisting of rare-earth elements, Ba, Cu and O on the surface of a base material, forming the layer of the constituents reacting with one constituent to form the other constituent on the mixed layer, heating and melting the layer. CONSTITUTION:The first layer 5 consisting of a mixture of Ln2BaCuOx and LnBa2Cu3Ox (ln is Y and rare-earth elements) and in which the molar ratio of the Ln2BaCuOx is controlled to about 5-80 is formed on the surface of the base material 4 (Ni alloy, etc.) by plasma spraying, etc. The second layer 6 of the constituents (e.g. consisting of Cu oxide and Ba oxide and in which the molar ratio of Cu to Ba is controlled to about 1:0.1-0.95) reacting with Ln2BaCuOx to produce LnBa2Cu3O4 is formed on the surface of the first layer 5. The second layer 6 is heated to about 900-1000 deg.C and melted, and the second layer 6 is allowed to react with the Ln2BaCuOx constituting a part of the first layer 5 to form the superconducting film 7 of LnBa2Cu3Ox on the surface of the substrate 4 through unreacted first layer 5 without causing cracking.

7. 发明专利

JPH01172215A PRODUCTION OF SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPH01172215A
公开(公告)日：1989-07-07
申请号：JP33109287
申请日：1987-12-26
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , KOSUGE SHIGECHIKA , ONO MORIAKI , NAKADA KIYOKAZU , SUZUKI TERUO , WATANABE ITARU
IPC分类号： H01L39/24 , C01G1/00 , C01G3/00 , C23C14/08 , C23C14/28 , H01B12/06 , H01B13/00
摘要： PURPOSE:To for a film having high superconducting characteristic on a substrate in a stage of depositing a compound oxide on the surface of a substrate by a laser vapor deposition process by giving positive polarity to said substrate and adsorbing negative O ions to the substrate. CONSTITUTION:A substrate 3 (material to be subjected to vapor deposition) and a sintered body 2 (source of vapor deposition) of a compound oxide contg. a CuxOy group are disposed in an evacuated chamber 1. The sintered body 2 is evaporated by the irradiation with laser beam generating an evaporated stream, and an evaporated material is deposited to the substrate 3. In this state, the evacuated chamber 1 is held to be filled with oxygen atmosphere, and electric discharge is generated by impressing an electric voltage to discharge electrodes 12, 12' at both sides of said evaporated stream interposing the stream therebetween. Thus, bonding of O to the evaporated material is prompted. At the same time, positive polarity is given to the substrate 3 by impressing a bias voltage 15 to said substrate 3, and O ions having negative polarity are adsorbed electrically to the substrate 3.

8. 发明专利

JPH01172214A PRODUCTION OF SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPH01172214A
公开(公告)日：1989-07-07
申请号：JP33109187
申请日：1987-12-26
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , KOSUGE SHIGECHIKA , ONO MORIAKI , NAKADA KIYOKAZU , SUZUKI TERUO , WATANABE ITARU
IPC分类号： H01L39/24 , C01G1/00 , C01G3/00 , C23C14/08 , C23C14/24 , C23C14/28 , H01B12/10 , H01B13/00
摘要： PURPOSE:To form a film having superior superconducting characteristic on the surface of a substrate when a compound oxide is deposited by the vapor deposition with laser on the surface of a substrate, by generating electric discharge to an evaporated stream of a material to be evaporated and prompting bonding of oxygen to the evaporated material. CONSTITUTION:A substrate 3 (material to be subjected to vapor deposition) and a sintered body of a compound oxide 2 (source of vapor deposition) contg. CuxOy group are disposed in an evacuated chamber 1. The sintered body 2 is evaporated by the irradiation with laser beam and an evaporated material generated in the evaporated stream 11 is deposited to the substrate 3. In this stage, the evacuated chamber 1 is held to be filled with O2 atmosphere, and electric discharge is generated by impressing an electric voltage to discharge electrodes 12, 12' disposed to both sides of said evaporated stream 11 interposing the stream. Thus, bonding of O to the evaporated material is prompted. The evaporated material bonded to O is deposited to the surface of the substrate 3.

9. 发明专利

JPS6472504A SUPERCONDUCTING COIL 失效
公开(公告)号：JPS6472504A
公开(公告)日：1989-03-17
申请号：JP22913587
申请日：1987-09-12
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , KOSUGE SHIGECHIKA , ONO MORIAKI , NAKADA KIYOKAZU , SUZUKI TERUO , WATANABE ITARU
IPC分类号： H01B12/06 , H01F6/06
摘要： PURPOSE:To obtain a superconducting coil, in which a superconductive material is not required to be formed into a wire shape, by forming a spiral shaped film comprising a composite oxide superconductive material including CuxOy on the surface of a ring shaped substrate. CONSTITUTION:A spiral shaped film 2 comprising a composite oxide superconductive material including CuxOy is formed on the surface of a ring shaped substrate 1. For example, the ring shaped substrate 1 comprising Al2O3 is set in the vacuum container of a laser beam vacuum evaporation apparatus. A masking member having a spiral opening is brought into contact with the lower surface of the substrate 1 closely. CO2 laser is projected to an film evaporating source comprising Y1Ba2Cu3O7-y. The spiral film 2 comprising the superconductive material is formed on the surface of the substrate 1.

10. 发明专利

JPS6472414A SUPERCONDUCTING MATERIAL AND ITS MANUFACTURE 失效
公开(公告)号：JPS6472414A
公开(公告)日：1989-03-17
申请号：JP22913187
申请日：1987-09-12
申请人： UNIV TOKAI , NIPPON KOKAN KK
发明人： TACHIKAWA KYOJI , KOSUGE SHIGECHIKA , ONO MORIAKI , NAKADA KIYOKAZU , SUZUKI TERUO , WATANABE ITARU
IPC分类号： H01L39/24 , C01G1/00 , C23C14/08 , C23C14/24 , H01B12/06 , H01B13/00 , H01F6/06 , H01L39/12
摘要： PURPOSE:To enable generation of line of magnetic force and to obtain satisfac tory superconducting property by forming a rod-like or cyrindrical basic material and a spiral coating film of composite oxide superconducting material on the outer peripheral surface of the basic material. CONSTITUTION:A rod-like basic material 1 is arranged on a shielding plate 12 in a vacuum vessel 5 of a razor vapor deposition device and a disc-like Y-Ba-Cu-O composite oxide sintered body is used as a vopor deposition source 6. A slit 13 of the shielding plate 12 is formed to be a square hole through which slit 13 the basic material 1 is moved at a specified speed while being rotated around the axial line. It is thus possible to obtain a superconducting material A is obtained by forming a spiral coating film 2 made of a composite oxide superconducting material of Y1Ba2Cu3O7-y on the outer peripheral surface of the basic material 1.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式