Title :
Deposition of Gd2O3 buffer layers on Ni-based substrates by aerosol spray pyrolysis
Author :
Lu, Feng ; Hellstrom, Eric E.
Author_Institution :
Appl. Supercond. Center, Univ. of Wisconsin-Madison, Madison, WI, USA
fDate :
6/1/2005 12:00:00 AM
Abstract :
Aerosol spray pyrolysis (ASP) was used to deposit Gd2O3 on pure Ni and Ni(5at%W). The H2:H2O ratio in the gas stream, consisting of forming gas + the aqueous nitrate mist, was adjusted to 0.75, which prevented the Ni(W) substrate from oxidizing. A dense, ∼600 nm thick layer of Gd2O3 could be deposited on a textured Ni(5at%W) substrate at 900°C in 20 min. The Gd2O3 was not textured and the surface was rough.
Keywords :
aerosols; barium compounds; buffer layers; foams; gadolinium compounds; high-temperature superconductors; nickel; oxidation; pyrolysis; spray coating techniques; spray coatings; superconducting thin films; surface roughness; yttrium compounds; 20 min; 600 nm; 900 C; ASP; Gd2O3; H2O; Ni; Ni-based substrates; aerosol spray pyrolysis; aqueous nitrate; buffer layer; coated conductor; forming gas; gas stream; surface roughness; Aerosols; Application specific processors; Buffer layers; Conductors; Cooling; Plasma measurements; Spraying; Substrates; Transducers; Yttrium barium copper oxide; Aerosol spray pyrolysis; buffer layers; coated conductor;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.848714
