Strengthened, biaxially textured Ni substrate with small alloying additions for coated conductor applications

  • A. Goyal
  • , R. Feenstra
  • , M. Paranthaman
  • , J. R. Thompson
  • , B. Y. Kang
  • , C. Cantoni
  • , D. F. Lee
  • , F. A. List
  • , P. M. Martin
  • , E. Lara-Curzio
  • , C. Stevens
  • , D. M. Kroeger
  • , M. Kowalewski
  • , E. D. Specht
  • , T. Aytug
  • , S. Sathyamurthy
  • , R. K. Williams
  • , R. E. Ericson

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

Fabrication of a biaxially textured, strengthened Ni substrate with small alloying additions of W and Fe is reported. The substrates have significantly improved mechanical properties compared to 99.99% Ni and surface characteristics which are similar to that of 99.99% Ni substrates. High quality oxide buffer layers can be deposited on these substrates without the need for any additional surface modification steps. Grain boundary misorientation distributions obtained from the substrate show a predominant fraction of low-angle grain boundaries. A high critical current density, Jc, of 1.9 MA/cm2 at 77 K, self-field is demonstrated on this substrate using a multilayer configuration of YBCO/CeO2/YSZ/Y2O3/Ni-3at.%W-1.7at.%Fe. This translates to a Ic/width of 59 A/cm at 77 K and self-field. Jc at 0.5 T is reduced by only 21% indicating strongly-linked grain boundaries in the YBCO film on this substrate.

Original languageEnglish
Pages (from-to)251-262
Number of pages12
JournalPhysica C: Superconductivity and its Applications
Volume382
Issue number2-3
DOIs
StatePublished - Nov 1 2002

Funding

Research sponsored by the US Department of Energy under contract no. DE-AC05-00OR22725 with the Oak Ridge National Laboratory, managed by UT-Battelle, LLC.

Fingerprint

Dive into the research topics of 'Strengthened, biaxially textured Ni substrate with small alloying additions for coated conductor applications'. Together they form a unique fingerprint.

Cite this