Mechanical properties of high-temperature superconducting wires
Abstract
Bending strength, fracture toughness, and elastic modulus data were acquired for YBa2Cu3O(x), Bi2Sr2CaCu2O(x) (Bi,Pb)2Sr2Ca2Cu3O(x), and Tl2Ba2Ca2Cu3O(x) bars. These data and thermal expansion coefficients strongly suggest that the maximum possible tensile strain without fracture of bulk tapes or wires is approximately equals 0.2%. In Ag-clad conductors, residual stresses will be of limited benefit, but fractures produced by larger strains can be accommodated by shunting current through the Ag.
- Publication:
-
4th International Conference and Exhibition: World Congress on Superconductivity
- Pub Date:
- April 1995
- Bibcode:
- 1995suco.conf..633G
- Keywords:
-
- Elastic Bending;
- Electric Wire;
- Fracture Strength;
- Modulus Of Elasticity;
- Residual Stress;
- Silver;
- Ybco Superconductors;
- Coefficients;
- Fractures (Materials);
- Fracturing;
- Thermal Expansion;
- Structural Mechanics