Thermal treatments for biaxially textured Cu-Ni alloys for YBCO coated conductors

• Published in: IEEE transactions on applied superconductivity Vol. 15; no. 2; pp. 2687 - 2690
• Main Authors: Soubeyroux, J.L., Bruzek, C.E., Girard, A., Jorda, J.L.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Alloys; Annealing; ANNEALING PROCESSES; Applied sciences; Chemical Sciences; COATINGS; Conducting materials; Conductors; Copper alloys; COPPER ALLOYS (40 TO 99.3 CU); Copper base alloys; COPPER OXIDE; Cu-Ni substrate; Electric connection. Cables. Wiring; ELECTRICAL CONDUCTORS; Electrical engineering. Electrical power engineering; Electronics; Exact sciences and technology; Material chemistry; Materials; Neutrons; Nickel alloys; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Superconducting devices; superconducting tapes; SUPERCONDUCTORS; Surface layer; Temperature; Texture; TEXTURES; Thermal conductivity; Various equipment and components; X RAYS; X-ray diffraction; YBCO coated conductor; YBCO superconductors; Yttrium barium copper oxide; YTTRIUM OXIDE; Temperature dependence; Annealing; Heat treatment; Neutron diffraction; Annealing temperature; YBCO coated conductor; Texture; Coated material; Surface treatment; Superconducting tapes; Cu-Ni substrate; Electrical conductor; Pole figures; High temperature superconductor; superconducting tapes
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2005.847783

We have studied the thermal treatments necessary to texture Cu-Ni alloys in view of applications as substrate for the YBCO coated conductors. Several alloy compositions chosen in order to avoid magnetism of the tapes have been elaborated by the rolling (RABiTS) method. Analyzes of the texture as a function of annealing temperature have been done by X-ray and neutron diffractions, pole figures by EBSD and X-rays. The results show that the annealing temperature is dependant of the alloy composition and must be determined precisely for each composition. Good biaxial textures have been obtained on these cheap alloys.