Inverted anisotropy in the in-plane dissipation of BSCCO tapes: preliminary results

TL;DR

This study investigates the electrical anisotropy in BSCCO tapes, revealing measurable differences in transport properties between longitudinal and transverse directions, which are crucial for understanding failure modes and AC behavior.

Contribution

It provides the first experimental comparison of in-plane transverse and longitudinal electrical transport in BSCCO tapes, highlighting anisotropic dissipation effects.

Findings

Transverse dissipation differs from longitudinal in BSCCO tapes.

Anisotropy in electrical transport is measurable despite non-multifilamentary structure.

Preliminary results suggest anisotropic behavior impacts tape performance.

Abstract

The electrical properties of superconducting tapes and coatings in the direction transverse to the long dimension of the composite has been rarely studied. However, transverse dissipation can eventually determine the behavior of a transmission line in the case of failure due to the presence of transversal cracks, and is also fundamental in the AC regime. In this paper we present a preliminary experimental study of the electrical transport properties along the transverse direction of BSCCO-metal tapes, and compare them with those measured along the long axis of the material. In spite of the fact that the tapes under study are not multi-filamentary, our experiments suggest that there is a measurable anisotropy of the transport properties between the longitudinal and transverse directions.