Solution buffer layers for YBCO coated-conductors

S. Sathyamurthy, M. Paranthaman, H. Y. Zhai, S. Kang, C. Cantoni, S. Cook, L. Heatherly, A. Goyal, H. M. Christen, Md S. Bhuiyan, K. Salama

Research output: Contribution to conferencePaperpeer-review

Abstract

A single layer of La 2Zr 2O 7 (LZO), deposited on textured Ni and Ni-3%W (Ni-W) tapes by a low-cost sol-gel process, is used as a buffer layer for the growth of YBa 2Cu 3O 7-δ (YBCO) coated conductors. It is shown for the first time that such single buffer layers can be used for the deposition of YBCO yielding critical current densities (J c) that are comparable to those typically obtained using CeO 2/YSZ/Y 2O 3 tri-layers on identical substrates, i.e. in excess of 1 MA/cm 2 on nickel substrates and close to 2 MA/cm 2 on Ni-W substrates (which has a sharper texture) at 77K and self-field. Reel-to-reel deposition of LZO buffer layers in long lengths and their use in fabrication of coated conductors in long lengths has also been demonstrated. These results offer promise to the fabrication of low cost allsolution coated conductors.

Original languageEnglish
Pages3-8
Number of pages6
StatePublished - 2004
EventFabrication of Long-Length and Bulk High-Temperature Superconductors - Nashville, TN., United States
Duration: Apr 27 2003Apr 30 2003

Conference

ConferenceFabrication of Long-Length and Bulk High-Temperature Superconductors
Country/TerritoryUnited States
CityNashville, TN.
Period04/27/0304/30/03

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