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Title: Development of Solution Buffer Layers for RABiTS Based YBCO Coated Conductors

Abstract

Abstract The main objective of this research is to find a suitable alternate solution based seed layer for the standard RABiTS three-layer architecture of physical vapor deposited CeO cap/YSZ barrier/Y O seed on Ni-5%W metal tape. In the present work, we have identified CeO buffer layer as a potential replacement for Y O seeds. Using a metal-organic deposition (MOD) process, we have grown smooth, crack-free, epitaxial thin films of CeO (pure and Zr, Cu and Gd-doped) directly on biaxially textured Ni-5W substrates in short lengths. Detailed XRD studies indicate that a single epitaxial CeO phase with slightly improved out-of-plane texture compared to the texture of the underlying Ni-W substrates can be achieved in pure, undoped CeO samples. We have also demonstrated the growth of YSZ barrier layers on pure CeO seeds using sputtering. Both sputtered CeO cap layers and MOD-YBCO films were grown epitaxially on these YSZ-buffered MOD-CeO /Ni-5W substrates. High critical currents per unit width, of 264 A/cm (critical current density, of 3.3 MA/cm ) at 77 K and 0.01 T was achieved for 0.8 m thick MOD-YBCO films grown on MOD-CeO seeds. These results indicate that CeO films can be grown directly on Ni-5W substrates and still supportmore » high performance YBCO coated conductors. This work holds promise for a route for producing low-cost buffer architecture for RABiTS based YBCO coated conductors.« less

Authors:
 [1];  [1];  [1];  [1];  [2];  [1];  [2];  [2]
  1. ORNL
  2. American Superconductor Corporation, Westborough, MA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
Work for Others (WFO)
OSTI Identifier:
1037170
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 21; Journal Issue: 3; Journal ID: ISSN 1051-8223
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BUFFERS; CRITICAL CURRENT; CURRENT DENSITY; PHYSICAL VAPOR DEPOSITION; PERFORMANCE; SEEDS; SPUTTERING; SUBSTRATES; TEXTURE; THIN FILMS; X-RAY DIFFRACTION

Citation Formats

Paranthaman, Mariappan Parans, Qiu, Xiaofeng, List, III, Frederick Alyious, Zhang, Yifei, Li, Xiaoping, Sathyamurthy, Srivatsan, Thieme, C. L. H., and Rupich, M. W. Development of Solution Buffer Layers for RABiTS Based YBCO Coated Conductors. United States: N. p., 2011. Web. doi:10.1109/TASC.2010.2092731.
Paranthaman, Mariappan Parans, Qiu, Xiaofeng, List, III, Frederick Alyious, Zhang, Yifei, Li, Xiaoping, Sathyamurthy, Srivatsan, Thieme, C. L. H., & Rupich, M. W. Development of Solution Buffer Layers for RABiTS Based YBCO Coated Conductors. United States. https://doi.org/10.1109/TASC.2010.2092731
Paranthaman, Mariappan Parans, Qiu, Xiaofeng, List, III, Frederick Alyious, Zhang, Yifei, Li, Xiaoping, Sathyamurthy, Srivatsan, Thieme, C. L. H., and Rupich, M. W. 2011. "Development of Solution Buffer Layers for RABiTS Based YBCO Coated Conductors". United States. https://doi.org/10.1109/TASC.2010.2092731.
@article{osti_1037170,
title = {Development of Solution Buffer Layers for RABiTS Based YBCO Coated Conductors},
author = {Paranthaman, Mariappan Parans and Qiu, Xiaofeng and List, III, Frederick Alyious and Zhang, Yifei and Li, Xiaoping and Sathyamurthy, Srivatsan and Thieme, C. L. H. and Rupich, M. W.},
abstractNote = {Abstract The main objective of this research is to find a suitable alternate solution based seed layer for the standard RABiTS three-layer architecture of physical vapor deposited CeO cap/YSZ barrier/Y O seed on Ni-5%W metal tape. In the present work, we have identified CeO buffer layer as a potential replacement for Y O seeds. Using a metal-organic deposition (MOD) process, we have grown smooth, crack-free, epitaxial thin films of CeO (pure and Zr, Cu and Gd-doped) directly on biaxially textured Ni-5W substrates in short lengths. Detailed XRD studies indicate that a single epitaxial CeO phase with slightly improved out-of-plane texture compared to the texture of the underlying Ni-W substrates can be achieved in pure, undoped CeO samples. We have also demonstrated the growth of YSZ barrier layers on pure CeO seeds using sputtering. Both sputtered CeO cap layers and MOD-YBCO films were grown epitaxially on these YSZ-buffered MOD-CeO /Ni-5W substrates. High critical currents per unit width, of 264 A/cm (critical current density, of 3.3 MA/cm ) at 77 K and 0.01 T was achieved for 0.8 m thick MOD-YBCO films grown on MOD-CeO seeds. These results indicate that CeO films can be grown directly on Ni-5W substrates and still support high performance YBCO coated conductors. This work holds promise for a route for producing low-cost buffer architecture for RABiTS based YBCO coated conductors.},
doi = {10.1109/TASC.2010.2092731},
url = {https://www.osti.gov/biblio/1037170}, journal = {IEEE Transactions on Applied Superconductivity},
issn = {1051-8223},
number = 3,
volume = 21,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2011},
month = {Sat Jan 01 00:00:00 EST 2011}
}