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Growth of rare-earth zirconates-based pyrochlore buffer layers on YSZ for YBCO-coated conductors via chemical solution deposition

  • Ya Shen , Guofang Zhang , Chengshan Li , Zeming Yu , Lihua Jin , Yao Wang and Yafeng Lu
Published/Copyright: May 18, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 3

Abstract

Epitaxial films of rare-earth zirconates, RE2Zr2O7 (RE = La, Nd, Sm and Gd) were grown on yttrium stabilized zirconia (100) single crystal substrates using metal-organic deposition. A precursor solution of 0.25 '0.40 M concentration of total cations was spin-coated on yttrium stabilized zirconia substrates and crystallized at 1 000 8C for 3 h in Ar-4%H2 after calcination at 500 8C for 1 h. X-ray diffraction studies showed that the resulting pyrochlore RE2Zr2O7 films were highly textured with cube-on-cube epitaxy. Atomic force microscopy investigations revealed that the surfaces of La2Zr2O7, Nd2Zr2O7 and Sm2Zr2O7 films had a fairly dense and smooth microstructure without cracks and porosity, but that voids could be seen on the surface of the Gd2Zr2O7 film. Optical microscopy measurements confirmed that the Gd2Zr2O7 precursor solution showed poor wetting behavior on the substrate. It was concluded that the Nd2Zr2O7 and Sm2Zr2O7 films could be potentially used as buffer layers for YBa2Cu3O7-d coated conductors.

Keywords: Rare-earth zirconates; Pyrochlore structure; Buffer layer; YBa2Cu3O7'd-coated conductors
∗ Correspondence address, Prof. Dr. Guofang Zhang, Key Laboratory of Applied Surface and Colloid Chemistry, (Shaanxi Normal University) Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, P. R. China, Tel.: +862985307 647, Fax: +862985307 774, E-mail:

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Received: 2010-12-3
Accepted: 2011-10-23
Published Online: 2013-05-18
Published in Print: 2012-03-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110648
Keywords for this article
Rare-earth zirconates; Pyrochlore structure; Buffer layer; YBa2Cu3O7'd-coated conductors

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Free-surface enhanced continuum model predicts size-effect for pillar compression at micro- and nano-scale
  5. Modelling of microstructural evolution on complex paths of large plastic deformation
  6. Melting temperature of metallic nanoparticles embedded in a rigid matrix
  7. On the coupled growth of oxide phases during internal oxidation of Ag–Sn–Bi alloys
  8. Phase diagram of the Sb–Te–I system and thermodynamic properties of SbTeI
  9. Pressureless co-sintering behaviour of a steel/cemented carbide component: model bimaterial
  10. Rafting structure formation during solution treatment in a nickel-based superalloy
  11. A model to calculate the viscosity of silicate melts
  12. Prediction of glass transition temperatures of aromatic heterocyclic polymers
  13. Relationship between the γ and some parameters of Fe-based bulk metallic glasses
  14. Growth of rare-earth zirconates-based pyrochlore buffer layers on YSZ for YBCO-coated conductors via chemical solution deposition
  15. Preparation and characterization of low temperature sintering nanocrystalline TiO2 prepared via the sol-gel method using titanium(IV) butoxide applicable to flexible dye sensitized solar cells
  16. Effects of preparation methods on color properties of ZnO-based nano-crystalline green pigments
  17. Effect of reaction media on the formation of CdS nanorods
  18. Effect of titanium addition on structure and properties of the as-cast high Cr–Mo white iron
  19. Effect of welding sequence on residual stress distributions in GTA welding of AA5251 plate
  20. Electrochemical machining of Al/15% SiCP composites through a response surface methodology-based approach
  21. Effects of nanoclay on rutting and fatigue resistance of bitumen binder
  22. DGM News
  23. DGM News
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