Patent ID: 6255596
Filing Date: 2001-07-03
Classification: H01F,H01L,Y10S

Abstract:
An aluminum stabilized superconductor comprising:a superconducting wire prepared by embedding superconducting filaments in copper or a copper alloy matrix; andan aluminum stabilizing material covering an outer surface of said superconducting wire;wherein said aluminum stabilizing material is an aluminum alloy with a purity of 99.999% or more comprising greater than 50 ppm and less than approximately 120 ppm of the sum of contents of Si and Cu and subjected to cold working reduction by approximately 5 to 20% and wherein a content of Si is between 10 ppm and 50 ppm andthereby the cold worked aluminum stabilizing material has 0.2% proof stress of at least 4 kgf/mm.sup.2 at room temperature and a residual resistance ratio of at least 250.