Critical current measurements of CVD prepared Nb/sub 3/Ge containing various amounts of second phase (Nb/sub 5/Ge/sub 3/) material
Conference
·
OSTI ID:7251824
Data are presented which show a relationship between the critical current density and second phase (tetragonal Nb/sub 5/Ge/sub 3/) material in CVD deposited Nb/sub 3/Ge for deposition temperatures ranging from 750 to 900/sup 0/C. The data were measured in the temperature range from T/sub c/ (approximately 21/sup 0/K) down to 13.8/sup 0/K and at 4/sup 0/K for several of the samples. Also reported is the slope of the critical current density with respect to temperature, dJ/sub c//dT. Samples with the largest J/sub c/ at 13.8/sup 0/K also had the largest (dJ/sub c//dT) and the lowest extrapolated intercept of the J/sub c/ curve with the temperature axis. J/sub c/ at 13.8/sup 0/K as a function of second phase has a maximum of 2.5 x 10/sup 6/ A/cm/sup 2/ for approximately 2 to 3 percent Nb/sub 5/Ge/sub 3/ present in the coat. The temperature dependence of the critical current was represented by J/sub c/(T) = J/sub c/(0) (1-(T/T/sub c/)/sup 2/) for most samples. 5 figures.
- Research Organization:
- Los Alamos Scientific Lab., N.Mex. (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7251824
- Report Number(s):
- LA-UR-76-1873; CONF-760829-18
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Journal Article
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Sun Dec 31 23:00:00 EST 1978
· IEEE Trans. Magn.; (United States)
·
OSTI ID:5255447
Critical current densities in Nb$sub 3$Ge between 14 and 21 K
Conference
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Sat Mar 01 00:00:00 EDT 1975
· IEEE Trans. Magn., v. MAG-11, no. 2, pp. 405-407
·
OSTI ID:4102412
Critical current densities in Nb/sub 3/Ge between 14 and 21 K
Conference
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Sat Mar 01 00:00:00 EDT 1975
· IEEE Trans. Magn.; (United States)
·
OSTI ID:7358762
Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CHEMICAL COATING
CHEMICAL COMPOSITION
CHEMICAL VAPOR DEPOSITION
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
GERMANIUM ALLOYS
INTERMETALLIC COMPOUNDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHYSICAL PROPERTIES
QUANTITY RATIO
SUPERCONDUCTIVITY
SURFACE COATING
TEMPERATURE DEPENDENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CHEMICAL COATING
CHEMICAL COMPOSITION
CHEMICAL VAPOR DEPOSITION
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
GERMANIUM ALLOYS
INTERMETALLIC COMPOUNDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHYSICAL PROPERTIES
QUANTITY RATIO
SUPERCONDUCTIVITY
SURFACE COATING
TEMPERATURE DEPENDENCE