Method of making sheathed high temperature superconducting wire

Method of making a sheathed high-critical-temperature superconducting wire by the "powder in tube" method. According to the invention, prior to the introduction of a slab of compressed powder of superconducting material into a silver tube, this slab is subjected to a heat treatment such th...

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Hauptverfasser:	DUPERRAY, GERARD, LEGAT, DENIS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONDUCTORS ELECTRICITY INORGANIC CHEMISTRY INSULATORS METALLURGY SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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creator	DUPERRAY, GERARD LEGAT, DENIS
description	Method of making a sheathed high-critical-temperature superconducting wire by the "powder in tube" method. According to the invention, prior to the introduction of a slab of compressed powder of superconducting material into a silver tube, this slab is subjected to a heat treatment such that the parasitic grains are resorbed. This results in easier drawing of the tube, and results in strands with a regular geometry being obtained, free of defects and consisting of filaments (30) of thickness 15 to 20 mu m, having a form factor higher than 60.
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According to the invention, prior to the introduction of a slab of compressed powder of superconducting material into a silver tube, this slab is subjected to a heat treatment such that the parasitic grains are resorbed. 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According to the invention, prior to the introduction of a slab of compressed powder of superconducting material into a silver tube, this slab is subjected to a heat treatment such that the parasitic grains are resorbed. 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According to the invention, prior to the introduction of a slab of compressed powder of superconducting material into a silver tube, this slab is subjected to a heat treatment such that the parasitic grains are resorbed. This results in easier drawing of the tube, and results in strands with a regular geometry being obtained, free of defects and consisting of filaments (30) of thickness 15 to 20 mu m, having a form factor higher than 60.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
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subjects	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONDUCTORS ELECTRICITY INORGANIC CHEMISTRY INSULATORS METALLURGY SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
title	Method of making sheathed high temperature superconducting wire
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