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Method to improve current transport in YBCO accross high angle grain boundaries by diffusing Ca into the YBCO from a Ca-containing buffer

IP.com Disclosure Number: IPCOM000019659D
Publication Date: 2003-Sep-24

Publishing Venue

The IP.com Prior Art Database

Related People

Inventors:
Suresh Annavarapu Bart Riley

Abstract

The general purpose of this approach is to improve current transport across high angle grain boundaries in YBCO films grown for use in high-temperature superconductors. Typically, the critical current of YBCO films grown on biaxially textured substrates (RABiTS or IBAD or similar) is limited by the presence of high angle grain boundaries i.e. boundaries separating grains misoriented by greater than 5°.