Electrical resistivity of composite superconductors
Abstract
In addition to its superconducting properties, a superconductor is usually characterized by poor thermal conductivity and relatively high electrical resistivity in the normal state. To remedy this situation a study of superconducting properties of Cu-rich CU-Nb wires prepared by directionally solidified and cold-rolled technique was conducted. Some of the specimens were prepared by melting, directional solidification and diffusing in Tin. A total of 12 wire specimens was tested. Each specimen was analyzed by plotting experimental data into the following curves: the graph of the residual resistivity as a function of the specimen current at 4.3 K; and the graph of the electrical resistivity as a function of the temperature at a constant current.
- Publication:
-
Alabama Univ., Huntsville Report
- Pub Date:
- April 1983
- Bibcode:
- 1983alab.rept.....D
- Keywords:
-
- Composite Materials;
- Electrical Resistivity;
- Magnetic Fields;
- Superconductors;
- Temperature Gradients;
- Thermal Conductivity;
- Copper Alloys;
- Current Density;
- Electron Tunneling;
- Niobium Alloys;
- Numerical Analysis;
- Tin;
- Transition Temperature;
- Electronics and Electrical Engineering