Title :
Effect of deposition method on the uniformity of Hg-1212 thick films
Author :
Moore, J.C. ; Bisset, M.I. ; Knoll, D.C. ; Marin, J. ; Peterson, S. ; Roney, A.B. ; Sastry, P.V.P.S.S. ; Schwartz, Justin
Author_Institution :
Nat. High Magnetic Field Lab., Florida State Univ., Tallahassee, FL, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
Hg-1212 thick films were fabricated using three methods to deposit the precursor film. It was found that the uniformity of the superconducting film is directly related to the uniformity of the precursor film. Significant thickness variations in the precursor film could, not be entirely eliminated by the subsequent melting and densification occurring during Hg-1212 phase formation. We conclude that deposition of a high quality precursor film is essential to produce a textured superconducting film with good coverage.
Keywords :
barium compounds; calcium compounds; densification; high-temperature superconductors; melting; mercury compounds; superconducting thin films; texture; Hg-1212 thick films; HgBa/sub 2/CaCu/sub 2/O; densification; deposition method; good coverage; high temperature superconductor; melting; superconducting film; uniformity; Coatings; Doping; Fabrication; Mercury (metals); Powders; Spraying; Substrates; Superconducting films; Superconducting materials; Thick films;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
