| Autor: |
Vasylyev, Oleksandr D., Smirnova, Alevtina, Brychevskyi, Mykola, Pryshchepa, Ievgenii, Dubykivskyi, Leonid, Sameluk, Anatolii, Vereschak, Viktor, Malzbender, Juergen |
| Zdroj: |
ECS Transactions; September 2009, Vol. 25 Issue: 2 |
| Abstrakt: |
Structure, elastic modulus and conductivity of EB-PVD 10Sc1CeSZ films deposited on NiO-8YSZ anodes were studied. The films have laminar-columnar structure nucleating as bundles of columns of nano-sized diameter. Two types of lamella could be distinguished with a thickness range of 0.5 - 5.0 μm and 0.1 - 0.2 μm, respectively. This structural anisotropy is associated with the distribution of chemical elements across the as-deposited film (Zr, Sc, Ce) and diffusion from the anode (Ni, Y), which most likely is a consequence of instabilities of the deposition process and the condensation mechanism. The elastic modulus of the film is also anisotropic; showing values of 120 GPa at the surface and 105 GPa in the cross-section. Annealing in air increases the elastic modulus up to 140 GPa. The area near the interface with the anode has a higher modulus than that near the surface, which might be associated with the solidification process of the film. The conductivity of the EB-PVD film is half an order of magnitude higher than for a film deposited by screen printing one. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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