The effect of microstructure on the superconducting properties of dilute copper-niobium alloys
Abstract
A study of the superconducting properties of Cu-1.5% Nb alloys in relation to their microstructure indicates that in volume-crystallized alloys, superconductivity is associated with the transition to the superconducting state of niobium eutectic dendrites and superconducting electron tunneling through the copper matrix between adjacent dendrites. In directionally crystallized alloys, the superconductivity transition temperature is largely determined by the composition of Nb fibers which form a continuous superconducting network.
- Publication:
-
Fizika Metallov i Metallovedenie
- Pub Date:
- August 1980
- Bibcode:
- 1980FizMM..50..293P
- Keywords:
-
- Copper Alloys;
- Directional Solidification (Crystals);
- Eutectic Alloys;
- Microstructure;
- Niobium Alloys;
- Superconductivity;
- Binary Alloys;
- Cast Alloys;
- Dendritic Crystals;
- Metal Crystals;
- Temperature Dependence;
- Solid-State Physics