Title :
Bi-2223 precursor billets for PIT wire production
Author :
Yamashita, T. ; Alarco, J.A. ; Ilyushechkin, A.J. ; Tomlins, K. ; Talbot, P.
Author_Institution :
Adv. Ceramics Dev., Queensland Univ., St. Lucia, Qld., Australia
fDate :
6/1/1999 12:00:00 AM
Abstract :
High temperature superconductor precursor billets (feed rods) have been developed for loading into silver tubes. The billets are loaded prior to rolling or drawing operations in PIT wire manufacture. Investigations have shown that wires and tapes prepared from feed rod loaded tubes show enhanced uniformity of electrical transport properties when compared with conventional powder packing, especially in wires drawn to long lengths. Analysis on production feed rods have shown carbon content to be as low as 110 ppm.
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); high-temperature superconductors; powder technology; rolling; sintering; strontium compounds; superconducting tapes; (BiPb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O; HTSC precursor billets; carbon content; critical current density; drawing; feed rods; powder-in-tube wires; rolling; silver tubes; sintering; Billets; Feeds; High temperature superconductors; Manufacturing; Powders; Production; Silver; Superconducting filaments and wires; Superconducting films; Superconducting filters;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
