Effect of Mechanical Loading on the Ic Degradation Behavior of Bi-2223 Tapes.

Autor: Baldan, Carlos A., Shigue, Carlos Y., Ruppert Filho, Ernesto, Oliveira, Ulisses R.
Předmět:
Zdroj: IEEE Transactions on Applied Superconductivity; Jun2005 Part 3 of 3, Vol. 15 Issue 2, p3552-3555, 4p
Abstrakt: During the winding process of HTS coils the tapes of Bi-2223 are subjected to the influence of bending strain, axial strain, compressive force and torsional deformation resulting in Ic degradation. In the literature the effects of the individual strain components are separately analyzed in spite of during coil winding and energizing the strain-stress effects are combined. In this work using commercial tapes of Bi-2223 Ag/AgMg with and without stainless steel reinforcement several samples were wound on cylindrical FRP G-10 holder in which different combined strains are applied. Measurements of I — V characteristic curves are done to determine the degree of critical current degradation and the operational limits. The results are compared with the Ic values of short samples and other specimens subjected to deformation generated by loading types such as tensile and bending strain. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index