Title :
Fabrication of Cube-Textured Ni-9%atW Substrate for YBCO Superconducting Wires Using Powder Metallurgy
Author :
Zhou, Y.X. ; Ghalsasi, S.V. ; Hanna, M. ; Tang, Z.J. ; Meng, R.L. ; Salama, K.
Author_Institution :
Univ. of Houston, Houston
fDate :
6/1/2007 12:00:00 AM
Abstract :
Sharp cube textured Ni-9%atW alloy substrates were successfully achieved using the powder metallurgy process and gave promise for coated conductor with reduced AC losses and improved mechanical properties. X-ray studies indicated that the newly developed Ni-9%atW alloy substrates have a good out-of-plane and in-plane orientation with FWHM values about 3.7deg and 7.05deg respectively. Smooth surface as well as fine grains were obtained in the newly developed textured substrate. Curie temperature is suppressed to be 30 K and magnetic hysteretic losses are zero for Ni-9%atW alloy substrates at 77 K.
Keywords :
Curie temperature; barium compounds; high-temperature superconductors; magnetic hysteresis; nickel alloys; powder metallurgy; tungsten alloys; yttrium compounds; AC losses; Curie temperature; NiW - Surface; YBCO superconducting wires; YBa2Cu3O7-delta - System; cube-textured Ni-9%atW substrate; in-plane orientation; magnetic hysteretic losses; mechanical properties; out-of-plane orientation; powder metallurgy; temperature 77 K; Conductors; Fabrication; Magnetic hysteresis; Mechanical factors; Powders; Superconducting filaments and wires; Superconducting magnets; Surface texture; Temperature; Yttrium barium copper oxide; AC losses; Ni-9%atW alloy substrates; powder metallurgy; textured substrate;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.899486
