Thin polycrystalline diamond films protecting zirconium alloys surfaces: From technology to layer analysis and application in nuclear facilities
| Autor: | Ladislav Fekete, Ladislav Klimša, Kateřina Horáková, S. Johnson, Petr Sajdl, Lin Shao, Jan Macák, Radek Škoda, Irena Kratochvílová, Petr Ashcheulov, Andrew Taylor, R. Vega, Jan Škarohlíd, Ladislav Kalvoda, Jaromír Kopeček, František Fendrych, Vladimír Cháb, S. Vratislav, Kateřina Kůsová |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Hydrogen Zirconium alloy Metallurgy General Physics and Astronomy chemistry.chemical_element Surfaces and Interfaces General Chemistry Chemical vapor deposition engineering.material Condensed Matter Physics Surfaces Coatings and Films Corrosion Coating X-ray photoelectron spectroscopy chemistry Chemical engineering engineering Crystallite Layer (electronics) |
| Zdroj: | Applied Surface Science. 359:621-628 |
| ISSN: | 0169-4332 |
| Popis: | Zirconium alloys can be effectively protected against corrosion by polycrystalline diamond (PCD) layers grown in microwave plasma enhanced linear antenna chemical vapor deposition apparatus. Standard and hot steam oxidized PCD layers grown on Zircaloy2 surfaces were examined and the specific impact of polycrystalline Zr substrate surface on PCD layer properties was investigated. It was found that the presence of the PCD coating blocks hydrogen diffusion into the Zircaloy2 surface and protects Zircaloy2 material from degradation. PCD anticorrosion protection of Zircaloy2 can significantly prolong life of Zircaloy2 material in nuclear reactors even at temperatures above Zr phase transition temperatures. |
| Databáze: | OpenAIRE |
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