STUDY OF MICROSTRUCTURE AND SUPERCONDUCTING PROPERTIES OF NB3AL- TAPES, OBTAINED BY HEAT TREATMENT OF THREE-LAYER AND MULTYLAYER COMPOSITES NB/ALCU
Valeriy P. Korzhov
Pages: 216-241
Published: 1 Jan 2012
Views: 427
Downloads: 33
Abstract: The structure and superconductivity of three- and multilayer composite tapes of Nb/AlCu after high- temperature heating at 1750-1850q C for 1-3 seconds were investigated. Three-layer composites of Nb/AlCu/Nb with thickness of 50 microns were obtained by applying a vacuum rolling at 400-450q C and subsequent rolling at room temperature. Multilayer lengthy composites of Nb/AlCu obtained by extrusion with subsequent flattening by rolling of complex blank, collected in a special way. The effect of copper on the structure and properties of three-layer tapes was investigated. Copper increased the critical current of the superconductor. The critical current density in multilayered Nb3Al-tape reaches 4 2 the value 8หน10 A/cm in magnetic field 14 T. The critical bending radius of the tape is 7 mm.
Keywords: multilayer composite tape, extrusion, rolling, superconducting nb3al-tape
Cite this article: Valeriy P. Korzhov. STUDY OF MICROSTRUCTURE AND SUPERCONDUCTING PROPERTIES OF NB3AL- TAPES, OBTAINED BY HEAT TREATMENT OF THREE-LAYER AND MULTYLAYER COMPOSITES NB/ALCU. Journal of International Scientific Publications: Materials, Methods & Technologies 6, 216-241 (2012). https://www.scientific-publications.net/en/article/1003210/
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