Journal article
Preparation of a Novel Ce0.9La0.1O2/Gd2Zr2O7 Buffer Layer Stack on NiW Alloy Substrates by the MOD Route
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
German Electron Synchrotron4
An optimized buffer layer architecture prepared by a metal organic deposition method on biaxially textured metallic substrate is proposed and developed successfully. The major achievement of this work is to choose a ${\rm Ce}_{0.9}{\rm La}_{0.1}{\rm O}_{2}$ layer as cap layer that possesses an excellent lattice match with the superconductor layer, and to employ 200 nm thick ${\rm Gd}_{2}{\rm Zr}_{2}{\rm O}_{7}$ film as barrier layer.
The effect of thermal cycling on the texture and morphology of the crystallized films and NiW substrate is discussed in detail. The texture quality and the epitaxial relationship between the buffer layer stack and the metallic substrate were studied by synchrotron x-ray diffraction. Well textured, smooth and crack-free ${\rm Ce}_{0.9}{\rm La}_{0.1}{\rm O}_{2}/{\rm Gd}_{2}{\rm Zr}_{2}{\rm O}_{7}$ buffer layer stacks are obtained, demonstrating the possibility of producing a high quality buffer layer stack by a low cost chemical solution deposition route.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2011 |
| Pages: | 2912-2915 |
| ISSN: | 15582515 , 10518223 and 23787074 |
| Types: | Journal article |
| DOI: | 10.1109/TASC.2010.2084051 |
| ORCIDs: | Grivel, Jean-Claude and Abrahamsen, Asger Bech |
Buffer layers Ce<sub>0.9</sub>La<sub>0.1</sub>O<sub>2</sub>-Gd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> Chemicals Coated conductors Conductors Epitaxial growth Lattices NiW Substrates X-ray diffraction X-ray scattering barrier layer biaxially textured metallic substrate buffer layers cap layer cerium compounds crack-free buffer layer crystallized films epitaxial growth epitaxial layer gadolinium compounds liquid phase deposition metal organic deposition method superconducting epitaxial layers superconducting materials superconductor layer synchrotron X-ray diffraction synchrotron radiation texture texture template textured buffer layer
