Patent application number | Description | Published |
20080318794 | Superconductive wire and method for producing the same - A superconductive wire wherein the superconductive wire has a core portion containing magnesium diboride as the main component and a continuous metallic sheath firmly adhered to the core portion; the core portion is kept substantially vacuum; and the content of an inert gas such as an Ar gas contained in the core portion is in the range of 0.00002 to 10 ppm. Further, disclosed is a method for producing a superconductive wire, wherein the method comprises the steps of mixing powder of a source material constituting magnesium diboride to form a core portion of the superconductive wire in an inert gas, filling a pipe with the mixed material powder in vacuum environment, sealing the pipe with vacuum after filled with the material powder, forming magnesium diboride powder by heating the vacuum-sealed pipe (sheath), and forming the core portion by wiredrawing the pipe in the state where the magnesium diboride powder is sealed with vacuum, and the core portion firmly sticks to the wiredrawn metallic pipe. The core portion is kept vacuum, and the content of an inert gas contained in the core portion is in the range of 0.00002 to 10 ppm. | 12-25-2008 |
20090170710 | METAL SHEATH MAGNESIUM DIBORIDE SUPERCONDUCTING WIRE AND ITS MANUFACTURING METHOD - In a metal sheath MgB | 07-02-2009 |
20090176649 | Permanent Current Switch - There is disclosed a permanent current switch which has a high temperature margin and which is thermally stable and which securely performs a switching operation between a superconducting state and a normal conducting state. The permanent current switch of the present invention has a coiled superconducting wire and a heater wire which switches the superconducting wire between the superconducting state and the normal conducting state, the superconducting wire is a magnesium diboride superconducting wire having a high-resistance metal on an outer side and a magnesium diboride superconducting portion on an inner side and prepared by forming a superconducting metal on a layer between the high-resistance metal and the magnesium diboride superconducting portion, and the permanent current switch further comprises a superconductive connecting section superconductively connected to a lead wire guided from the superconducting wire and a superconducting wire for a wiring line. | 07-09-2009 |
20120004110 | MAGNESIUM DIBORIDE SUPERCONDUCTING WIRE AND METHOD FOR MANUFACTURING SAME - It is an objective of the present invention to provide a method for manufacturing long lengths of MgB | 01-05-2012 |
20120083415 | PROCESS OF SUPERCONDUCTING WIRE AND SUPERCONDUCTING WIRE - A process of a superconducting wire is provided, which includes a step for twisting a first wire with a second wire that is different from the first wire and a step for filling a twisted wire of the first wire and the second wire in a metal tube, or enveloping the twisted wire in a metal sheet. According to the process, for example, an MgB | 04-05-2012 |
20120108435 | JOINT OF SUPERCONDUCTING WIRES AND METHOD FOR JOINING SUPERCONDUCTING WIRES - Provided is a superconducting apparatus, including a joint of superconducting wires having high electric conduction characteristics and a superconducting magnet or the like. The superconducting joint comprises a plurality of superconducting wires and a sinter which integrates the plurality of superconducting wires. Herein, at least any one of the superconducting wires is a MgB | 05-03-2012 |
20120220465 | MgB2 SUPERCONDUCTIVE WIRE - The invention provides a MgB | 08-30-2012 |
20130012395 | SUPERCONDUCTING WIRE AND THE PROCESS OF MANUFACTURE - A superconducting wire which is obtained by a heat treatment at a lower temperature than related art and has a high critical current density, and the process of manufacture can be provided by causing a compound expressed by the following formula (1) to be contained: | 01-10-2013 |
20140066313 | MGB2 SUPERCONDUCTING MULTI-CORE WIRES, SUPERCONDUCTING CABLES, AND SUPERCONDUCTING MAGNETS - The present invention provides a MgB | 03-06-2014 |