Patent ID: 7480978
Filing Date: 2009-01-27
Classification: B21C,C23C,H01L,H02G,Y02E,Y10T

Abstract:
1. A process for making superconducting material useful for forming electrolytic devices comprising the steps of: a) establishing multiple niobium or tantalum components in a primary billet of a ductile material; b) working the primary billet through a series of reduction steps to form said niobium or tantalum components into rounded elongated elements; c) cutting the rounded elongated elements from step b) and forming the cut elements into a stack around a metal core; d) surrounding the stack of cut and stacked rounded elements from step c) with a porous confining layer to form a secondary billet; e) working the secondary billet from step d) through a series of reduction steps to flatten the rounded elements in the stack into thin flattened ribbons so that each of the flattened ribbons have an Aspect Ratio of greater than 5:1; f) cutting the worked billet from step e) into sections; and g) leaching the core and sheath at least in part.