Claims
- 1. A method of texturing a superconductor oxide precursor, comprising the steps of:
- constraining an elongated superconductor oxide precursor between two constraining elongated members placed in contact therewith on opposite sides of the superconductor oxide precursor, and
- passing the superconductor precursor and the two constraining members with the two constraining members in contact with the superconductor precursor between flat rollers to texture the superconductor oxide precursor, upon passage between the flat rollers, the two constraining members are separate from the superconductor oxide precursor.
- 2. The method of claim 1 further comprising the step of selecting desired diameter constraining members to control a width of a formed textured superconductor oxide precursor.
- 3. The method of claim 1 further comprising the step of selecting constraining members having mechanical properties similar to that of the superconductor oxide precursor.
- 4. The method of claim 3 wherein one of the mechanical properties is ductility.
- 5. The method of claim 3 wherein one of the mechanical properties is strength.
- 6. The method of claim 1 further comprising the step of
- machining said flat rolls at locations on the roll in contact with said elongated members prior to said passing step.
- 7. The method of claim 1 further comprising the step of
- mechanically controlling lateral movement of said constraining members during said passing step.
- 8. A method of texturing a superconductor oxide precursor, comprising the steps of:
- providing an elongated superconductor oxide precursor which includes powder enclosed within a surrounding sheath,
- constraining the elongated superconductor oxide precursor between two constraining elongated members placed in contact therewith on opposite sides of the superconductor oxide precursor, and
- passing the superconductor precursor and the two constraining members with the two constraining members in contact with the superconductor precursor between flat rollers to texture the superconductor oxide precursor.
Government Interests
This invention was made with Government support under Contract No. DE-FG02-96ER82123 awarded by the Department of Energy. The Government has certain rights in this invention.
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Grasso et al., "Development of retangular Bi(2223) wires with reduced anisotrophy", Supercond. Sci. Technol., vo. 10, pp. 223-226. |