Extrusion of metal oxide superconducting wire, tube or ribbon
Abstract
A process for extruding a superconducting metal oxide composition YBa.sub.2 Cu.sub.3 O.sub.7-x provides a wire (tube or ribbon) having a cohesive mass and a degree of flexibility together with enhanced electrical properties. Wire diameters in the range of 6-85 mils have been produced with smaller wires on the order of 10 mils in diameter exhibiting enhanced flexibility for forming braided, or multistrand, configurations for greater current carrying capacity. The composition for extrusion contains a polymeric binder to provide a cohesive mass to bind the particles together during the extrusion process with the binder subsequently removed at lower temperatures during sintering. The composition for extrusion further includes a deflocculent, an organic plasticizer and a solvent which also are subsequently removed during sintering. Electrically conductive tubing with an inner diameter of 52 mil and an outer diameter of 87-355 mil has also been produced. Flat ribbons have been produced in the range of 10-125 mil thick by 100-500 mil wide. The superconducting wire, tube or ribbon may include an outer ceramic insulating sheath co-extruded with the wire, tubing or ribbon.
- Inventors:
- Issue Date:
- Research Org.:
- US Department of Energy (USDOE), Washington DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176658
- Patent Number(s):
- H001239
- Assignee:
- United States Of America, Department Of Energy
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Dusek, Joseph T. Extrusion of metal oxide superconducting wire, tube or ribbon. United States: N. p., 1993.
Web.
Dusek, Joseph T. Extrusion of metal oxide superconducting wire, tube or ribbon. United States.
Dusek, Joseph T. Tue .
"Extrusion of metal oxide superconducting wire, tube or ribbon". United States. https://www.osti.gov/servlets/purl/1176658.
@article{osti_1176658,
title = {Extrusion of metal oxide superconducting wire, tube or ribbon},
author = {Dusek, Joseph T.},
abstractNote = {A process for extruding a superconducting metal oxide composition YBa.sub.2 Cu.sub.3 O.sub.7-x provides a wire (tube or ribbon) having a cohesive mass and a degree of flexibility together with enhanced electrical properties. Wire diameters in the range of 6-85 mils have been produced with smaller wires on the order of 10 mils in diameter exhibiting enhanced flexibility for forming braided, or multistrand, configurations for greater current carrying capacity. The composition for extrusion contains a polymeric binder to provide a cohesive mass to bind the particles together during the extrusion process with the binder subsequently removed at lower temperatures during sintering. The composition for extrusion further includes a deflocculent, an organic plasticizer and a solvent which also are subsequently removed during sintering. Electrically conductive tubing with an inner diameter of 52 mil and an outer diameter of 87-355 mil has also been produced. Flat ribbons have been produced in the range of 10-125 mil thick by 100-500 mil wide. The superconducting wire, tube or ribbon may include an outer ceramic insulating sheath co-extruded with the wire, tubing or ribbon.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {10}
}