The Effects of High Reaction Temperatures on the Tc of Multifilamentary Nb-Al Wires
Powder metallurgy processed multifilamentary Nb-8 wt.% Al wires were heat-treated at temperatures >2000°C for very short times. Values of Tc ranging from 12 to 20 K have been resistively measured from these wires after annealing them at 700 to 750°C for 48 to 185 h. The Bc2(T) values of the same samples were also measured, and the values of their magnetic slope (-dBc2/dT) at Tc varied in the range 2.38 to 2.58 T/K.
KeywordsCritical Field High Reaction Temperature Transition Curve Niobium Powder Scanning Electron Microprobe
Unable to display preview. Download preview PDF.
- 5.R. Fliikiger, J. L. Jorda, A. Junod, and P. Fischer, Appl. Phys. Comm. 1:9–30 (1981).Google Scholar