First steps towards cube textured nickel profile wires for YBCO-coated conductors

• Published in: Physica. C, Superconductivity Superconductivity, 2011-10, Vol.471 (19), p.549-552
• Main Authors: Eickemeyer, J., Güth, A., Freudenberger, J., Holzapfel, B., Schultz, L.
• Format: Article
• Language: English
• Subjects: Coated conductor; COATINGS; Condensed matter: electronic structure, electrical, magnetic, and optical properties; COPPER OXIDE; Cross-disciplinary physics: materials science; rheology; Cube texture; ELECTRICAL CONDUCTORS; Exact sciences and technology; High-tc films; Materials science; Nickel; Nickel profile wire; Other heat and thermomechanical treatments; Physics; RECRYSTALLIZATION; Substrate wire; Superconducting films and low-dimensional structures; Superconducting tapes; Superconductivity; SUPERCONDUCTORS; Surface layer; TAPE; Texture; TEXTURES; Treatment of materials and its effects on microstructure and properties; WIRE; YTTRIUM OXIDE
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2011.07.001

► The cube texture as a typical sheet texture can also be formed by cold drawing and recrystallization in profile wires. ► Cube textured Ni profile wires containing up to 96.2% cube oriented grains in the central region were obtained. ► Forthcoming investigations are promising to get a textured substrate wire for YBCO-coated conductors. Cube textured nickel alloy tapes prepared by cold rolling and annealing (RABiTS method) represent a standard metallic substrate for superconductor coatings of the YBa 2Cu 3O 7− δ (YBCO) type. These tapes have a width to thickness ratio of about 30–100. However, a value of close to one is optimal concerning low energetic losses under alternating current applications. First experiments on micro-alloyed nickel prove that the cube texture as a typical sheet texture can also be formed in profile wires with a rectangular cross-section after cold drawing and recrystallization treatment.