Superconducting properties of Cu-Nb multi-filamentary composite wires containing Ga as the third element

1994 ◽  
Vol 27 (6) ◽  
pp. 1319-1322 ◽  
Author(s):  
S S Dubey ◽  
P N Dheer ◽  
M M Krishna ◽  
Y S Reddy ◽  
R G Sharma
Keyword(s):  
Superconducting Properties ◽  
The Third ◽  
Composite Wires

Mechanical And Superconducting Properties Of Cu-Nb3Sn In Situ Produced Composite Wires

1981 ◽  
Vol 12 ◽  
Author(s):  
A. Kolb-Telieps ◽  
B.L. Mordike ◽  
M. Mrowiec
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Wide Temperature Range ◽  
Volume Fraction ◽  
Superconducting Properties ◽  
Temperature Range ◽  
Composite Wires ◽  
Strength And Ductility

ABSTRACTCu-Nb composite wires were produced from powder, electrolytically coated with tin and annealed to convert the Nb fibres to Nb 3Sn. The content was varied between 10 wt % and 40 wt %. The superconducting properties of the wires were determined. The mechanical properties, tensile strength, yield strength and ductility were measured as a function of volume fraction and deformation over a wide temperature range. The results are compared with those for wires produced by different techniques.

Superconducting properties of Cu-NbTi composite wires with fine filaments

1987 ◽  
Vol 23 (2) ◽  
pp. 1728-1731 ◽  
Author(s):  
K. Yasohama ◽  
K. Morita ◽  
T. Ogasawara
Keyword(s):  
Superconducting Properties ◽  
Composite Wires

Enhanced Transport Current in MgB2 Superconducting Wire through Metallic Fe Addition

2015 ◽  
Vol 830-831 ◽  
pp. 509-512
Author(s):  
Neson Varghese ◽  
Devadas Kavazhikath Mohandas ◽  
Aswathy Pillai Mohan ◽  
Anooja Jayakumari Babu ◽  
Manoj Raama Varma ◽  
...  
Keyword(s):  
Low Temperature ◽  
Critical Current Density ◽  
Flux Pinning ◽  
Transport Current ◽  
Transport Critical Current Density ◽  
Superconducting Properties ◽  
Superconducting Wires ◽  
Fe Content ◽  
Composite Wires ◽  
Fe Addition

The structural and superconducting properties of iron sheathed mono-filamentary superconducting wires of MgB2 with and without Fe addition processed at a relatively low temperature of 600 °C were investigated. The transport critical current density (JC) of the superconducting composite wires is found to increase steadily with an increase in Fe content to an optimum of 10 wt.% is reached. The magnetic JC and flux pinning analysis of the samples carried out up to a field of 9 T also show significant enhancements throughout the entire field of study. Another observation is that the TC of the composites doesn’t vary much, indicating that the added Fe has not gone in to the MgB2 lattice.

Superconducting properties of powder metallurgically produced Cu‐Nb3Sn composite wires

1978 ◽  
Vol 32 (1) ◽  
pp. 79-81 ◽  
Author(s):  
R. Bormann ◽  
L. Schultz ◽  
H. C. Freyhardt
Keyword(s):  
Superconducting Properties ◽  
Composite Wires

Progress report on 21-cm observations at low latitude between longitudes (l 11) 0° and 66°

1967 ◽  
Vol 31 ◽  
pp. 177-179
Author(s):  
W. W. Shane
Keyword(s):  
Preliminary Report ◽  
Progress Report ◽  
Galactic Centre ◽  
Low Latitude ◽  
The Third ◽  
Introductory Lecture ◽  
Centre Region

In the course of several 21-cm observing programmes being carried out by the Leiden Observatory with the 25-meter telescope at Dwingeloo, a fairly complete, though inhomogeneous, survey of the regionl11= 0° to 66° at low galactic latitudes is becoming available. The essential data on this survey are presented in Table 1. Oort (1967) has given a preliminary report on the first and third investigations. The third is discussed briefly by Kerr in his introductory lecture on the galactic centre region (Paper 42). Burton (1966) has published provisional results of the fifth investigation, and I have discussed the sixth in Paper 19. All of the observations listed in the table have been completed, but we plan to extend investigation 3 to a much finer grid of positions.

The orbit of Pluto over a long interval of time

1966 ◽  
Vol 25 ◽  
pp. 227-229 ◽  
Author(s):  
D. Brouwer
Keyword(s):  
Periodic Orbit ◽  
Numerical Integration ◽  
Restricted Problem ◽  
Three Dimensional ◽  
The Third ◽  
Circular Restricted Problem ◽  
Resonance Relation

The paper presents a summary of the results obtained by C. J. Cohen and E. C. Hubbard, who established by numerical integration that a resonance relation exists between the orbits of Neptune and Pluto. The problem may be explored further by approximating the motion of Pluto by that of a particle with negligible mass in the three-dimensional (circular) restricted problem. The mass of Pluto and the eccentricity of Neptune's orbit are ignored in this approximation. Significant features of the problem appear to be the presence of two critical arguments and the possibility that the orbit may be related to a periodic orbit of the third kind.

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