Project Title:

An Innovative Technique to Produce High Jc, High-Strength HTS Wire Using Newly Discovered

04.15-9023A
901929
An Innovative Technique to Produce High Jc, High-Strength HTS Wire Using Newly Discovered

Abstract:

Processes and Materials
The company has developed a concept to produce functional super-conducting wire using
the heretofore unsuccessful 'powder in tube' process, dynamic compaction of the melt
process phase of SHS material generation, and high pressure operation of the resultant
aligned crystalline structure. The pre-reaction SHS powders will be placed in a silver
tube. These powders will then be ignited using normal SHS mixtures and processes.
 As the flame progresses down the tube creating a melt-phase liquid, the tube will
be swaged down to dynamically compact the melt. This will force the crystals to lay
down along their long axes in the tube. Upon cooling, the silver tube will contract
a greater amount than the ceramic superconductor putting the ceramic under pressure
to improve the Tc and Jc. The company will use its BISCCO-Pb powder which as a Tc
onset of 117K.
Applications would be in high power magnets, antennas, power and data conductors,
and sensors