Title :
HIP synthesized Nb/sub 3/Sn bulk materials with extraordinary homogeneity
Author :
Goldacker, W. ; Ahrens, R. ; Nindel, M. ; Obst, B. ; Meingast, C.
Author_Institution :
Kernforschungszentrum Karlsruhe, Inst. fur Tech. Phys., Germany
fDate :
3/1/1993 12:00:00 AM
Abstract :
The authors present a simple powder metallurgical approach to synthesizing Nb/sub 3/Sn bulk materials by heat treatment under hot isostatic pressure (HIP) conditions that yields very homogeneous and fully densified large Nb/sub 3/Sn samples. The total width of the superconducting transition obtained from a specific heat measurement was only 0.4 K, corresponding to a variation of the Sn content of less than +or-0.1 at.% over the macroscopic sample size. The physical and superconducting properties of such samples are characterized, and possible application of the resulting materials are given.<>
Keywords :
niobium alloys; specific heat of solids; superconducting transition temperature; tin alloys; type II superconductors; Nb/sub 3/Sn bulk materials; heat treatment; homogeneity; hot isostatic pressure; specific heat measurement; superconducting transition; Heat treatment; Hip; Inorganic materials; Niobium; Niobium-tin; Powders; Steel; Superconducting materials; Superconductivity; Tin;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
