摘要:
A superconducting circuit including a superconducting joint that joints a niobium titanium superconducting wire having a structure where a filament made of niobium titanium alloy is arranged in a matrix made of copper or copper alloy and other superconducting wire, in which a volume ratio or a surface density of an α-Ti precipitation in the niobium titanium alloy of the filament in the superconducting joint is smaller than the volume ratio or the surface density of the α-Ti precipitation in the niobium titanium alloy of the filament in the niobium titanium superconducting wire in a portion other than the superconducting joint.
摘要:
A superconducting switch is provided in which the structural strength of the superconducting switch is kept, and thermal efficiency between a superconducting film and a heater is high when an ON state (superconducting state) and an OFF state (normal conducting state) of the superconducting switch are switched. The superconducting switch includes a substrate, a heater for generating heat by energization, a conductive film, and a MgB2 film evaporated on the conductive film. The heater, the conductive film and the MgB2 film are laminated in this order on one surface of the substrate.
摘要:
A superconducting switch is provided in which the structural strength of the superconducting switch is kept, and thermal efficiency between a superconducting film and a heater is high when an ON state (superconducting state) and an OFF state (normal conducting state) of the superconducting switch are switched. The superconducting switch includes a substrate, a heater for generating heat by energization, a conductive film, and a MgB2 film evaporated on the conductive film. The heater, the conductive film and the MgB2 film are laminated in this order on one surface of the substrate.
摘要:
There is provided a superconducting joint for electrically connecting a first multifilamentary superconducting wire including a plurality of first superconducting filaments embedded in a first stabilizer matrix and a second multifilamentary superconducting wire including a plurality of second superconducting filaments embedded in a second stabilizer matrix. The joint includes: a first bundle of bare superconducting filaments being formed by removing the first stabilizer matrix at an end joint portion of the first superconducting wire; a second bundle of bare superconducting filaments being formed by removing the second stabilizer matrix at an end joint portion of the second superconducting wire; and an intermediate superconductor interposed in contact relationships between the first and the second bundles, a critical current density of the intermediate superconductor under an operating condition of the superconducting joint being less than a critical current density of the bare superconducting filaments under the operating condition.
摘要:
There is provided a superconducting joint for electrically connecting a first multifilamentary superconducting wire including a plurality of first superconducting filaments embedded in a first stabilizer matrix and a second multifilamentary superconducting wire including a plurality of second superconducting filaments embedded in a second stabilizer matrix. The joint includes: a first bundle of bare superconducting filaments being formed by removing the first stabilizer matrix at an end joint portion of the first superconducting wire; a second bundle of bare superconducting filaments being formed by removing the second stabilizer matrix at an end joint portion of the second superconducting wire; and an intermediate superconductor interposed in contact relationships between the first and the second bundles, a critical current density of the intermediate superconductor under an operating condition of the superconducting joint being less than a critical current density of the bare superconducting filaments under the operating condition.
摘要:
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: Mg(B1-xCx)y (1) where x is a number satisfying 0
摘要:
A superconducting circuit including a superconducting joint that joints a niobium titanium superconducting wire having a structure where a filament made of niobium titanium alloy is arranged in a matrix made of copper or copper alloy and other superconducting wire, in which a volume ratio or a surface density of an α-Ti precipitation in the niobium titanium alloy of the filament in the superconducting joint is smaller than the volume ratio or the surface density of the α-Ti precipitation in the niobium titanium alloy of the filament in the niobium titanium superconducting wire in a portion other than the superconducting joint.