Influence of superconductor film composition on adhesion strength of coated conductors

Autor: E. Galstyan, Ibrahim Kesgin, Venkat Selvamanickam, Louis Delgado, Yuhao Liu, N D Khatri
Rok vydání: 2015
Předmět:
Zdroj: Superconductor Science and Technology. 29:015003
ISSN: 1361-6668
0953-2048
DOI: 10.1088/0953-2048/29/1/015003
Popis: The effect of high temperature superconductor (HTS) film composition on the adhesion strength of rare- earth barium copper oxide coated conductors (CCs) has been studied. It has been found that the mechanical integrity of the superconductor layer is very susceptible to the defects especially those along the ab plane, probably due to the weak interfaces between the defects and the matrix. Gd and Y in the standard composition were substituted with Sm and the number of in-plane defects was drastically reduced. Consequently, a four-fold increase in adhesion or peeling strength in Sm-based CCs was achieved compared to the standard GdYBCO samples.
Databáze: OpenAIRE