摘要:
A superconducting lead assembly 10 comprising: a positive superconducting wire 12; a negative superconducting wire 12, wherein the positive superconducting wire 12 is configured to conduct inflow current to a cryogenic apparatus 200 and wherein the negative superconducting wire 12 is configured to conduct outflow current away from the cryogenic apparatus 200; and an electrically insulating separator 14, wherein the positive superconducting wire 12 and the negative superconducting wire 12 are arranged proximately one another and on opposite sides of the electrically insulating separator 14 for cancellation of electromagnetic forces attributable to current flowing simultaneously in opposite directions within the positive superconducting wire 12 and the negative superconducting wire 12, and wherein a length of the superconducting lead assembly 10 is flexible. In one embodiment the positive superconducting wire 12 and the negative superconducting wire 12 can include high temperature superconducting (HTS) material.
摘要:
In a method of manufacturing an oxide superconducting wire, a superconducting laminated body is prepared, a tape-shaped stabilizer is folded to be divided into a first portion in which the stabilizer covers one surface of the superconducting laminated body in a thickness direction and a second portion in which the stabilizer covers both side surfaces of the superconducting laminated body in a widthwise direction and the stabilizer is disposed around the superconducting laminated body, the first portion is formed to have a width larger than that of the superconducting laminated body using a molding jig and the superconducting laminated body is covered with the stabilizer, and the superconducting laminated body and the stabilizer are bonded and a bonding material between the second portion and the superconducting laminated body is formed to have a thickness larger than that of a bonding material between the first portion and the superconducting laminated body.
摘要:
Superconducting cables employ one or more superconducting tapes wound around a former. A compact superconducting cable is configured using a former having a small diameter, e.g., less than 10 millimeters. A flexible superconducting cable is configured with a former made of a flexible material. Superconducting tape conductors are wound around the former, with the superconducting layer in compression on the inside of the wind turns of the wind, to prevent irreversible damage to the superconductor. A layer of solder is on the superconducting tape(s) or solder sheaths are wound between tape conductors in each layer. The one or more solder layers or sheaths are melted to cause the solder to flow within the structure, to bond some or all of the superconducting tape conductors together and form a mechanically strong cable with an enhanced level of electrical connectivity between tapes in the cable.
摘要:
Operational characteristics of an extremely low resistance ("ELR") film comprised of an ELR material may be improved by depositing a modifying material onto appropriate surfaces of the ELR film to create a modified ELR film In some implementations of the invention, the ELR film may be in the form of a "c-film " Such operational characteristics may include operating in an ELR state at increased temperatures, carrying additional electrical charge, operating with improved magnetic properties, operating with improved mechanic properties or other improved operational characteristics In some implementations of the invention, the ELR material is a mixed-valence copper-oxide perovskite, such as, but not limited to YBCO In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium
摘要:
The invention relates to a method for producing a shaped body. According to the invention, a mixture of oxidic basic powders or a supraconductor material containing at least 30 % by volume flake-shaped primary particles, with a composition which is such that it forms a high-temperature supra-conductive material when later subjected to the appropriate thermal treatment, is reduced by means of milling, shearing and/or rolling, in such a way that the resulting reduced powder has a particle size distribution with a d90 value