Extrusion of metal oxide superconducting wire, tube or ribbon

Title: Extrusion of metal oxide superconducting wire, tube or ribbon

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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:

Dusek, Joseph T ^[1]

Lombard, IL

Issue Date:: 1993-01-01

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL

OSTI Identifier:: 875160

Patent Number(s):: H1239

Assignee:: United States of America as represented by United States (Washington, DC)

DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: extrusion; metal; oxide; superconducting; wire; tube; ribbon; process; extruding; composition; yba; cu; 7-x; provides; cohesive; mass; degree; flexibility; enhanced; electrical; properties; diameters; range; 6-85; mils; produced; wires; 10; diameter; exhibiting; forming; braided; multistrand; configurations; current; carrying; capacity; contains; polymeric; binder; provide; bind; particles; subsequently; removed; temperatures; sintering; deflocculent; organic; plasticizer; solvent; electrically; conductive; tubing; inner; 52; mil; outer; 87-355; flat; ribbons; 10-125; thick; 100-500; wide; ceramic; insulating; sheath; co-extruded; subsequently removed; oxide composition; polymeric binder; inner diameter; current carrying; oxide superconducting; metal oxide; electrically conductive; electrical properties; superconducting wire; outer diameter; mil thick; subsequently remove; carrying capacity; ceramic insulating; enhanced electrical; outer ceramic; extrusion process; exhibiting enhanced; superconducting metal; conducting metal; conducting wire; /505/264/427/

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                    Dusek, Joseph T. Extrusion of metal oxide superconducting wire, tube or ribbon.  United States: N. p., 1993. 
        Web.

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                    Dusek, Joseph T. Extrusion of metal oxide superconducting wire, tube or ribbon.  United States.

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                    Dusek, Joseph T. Fri .  
        "Extrusion of metal oxide superconducting wire, tube or ribbon".  United States.  https://www.osti.gov/servlets/purl/875160.

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@article{osti_875160,

  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        = {1}

}

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