LASL Nb/sub 3/Ge conductor development. Thirteenth quarterly progress report, July 1-September 30, 1979
- comp.
The thirteenth quarterly progress report of the Los Alamos Scientific Laboratory program to develop Nb/sub 3/Ge as a superconductor with potential applications to superconducting power transmission lines covers the period July 1, - September 30, 1979. The completion of the first one-meter test section of Nb/sub 3/Ge-based superconducting power transmission line is reported. The shorted length of coaxial cable is constructed on the Brookhaven National Laboratory (BNL) double-helix design and consists of four separate layers of Nb/sub 3/Ge-coated tapes wound at angles near 45/sup 0/. A total of 85 m of Nb/sub 3/Ge-coated tape was produced for this cable and only tapes which exhibited critical current density J/sub c/ at 14 K greater than or equal to 1.8 x 10/sup 6/ A/cm/sup 2/ were used in the fabrication. The results of efforts to improve J/sub c/ at high temperature by layering are described. Investigations of factors affecting material homogeneity in the long sample apparatus by x-ray and heat capacity studies were continued.
- Research Organization:
- Los Alamos Scientific Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5786142
- Report Number(s):
- LA-8159-PR
- Country of Publication:
- United States
- Language:
- English
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