Performance of thermal barrier coatings produced by smart plasma processing
Thermal barrier coating typically comprising of bondcoat and yttrium stabilized zirconium topcoat, has been used to improve the efficiency of turbine engine by providing the capability to sustain significant temperature gradient across the coating. Alumina and zirconia composite coating was prop...
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| Datum: | 2006 |
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| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2006
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| Schriftenreihe: | Вопросы атомной науки и техники |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/82302 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Performance of thermal barrier coatings produced by smart plasma processing / Akira Kobayashi // Вопросы атомной науки и техники. — 2006. — № 6. — С. 181-185. — Бібліогр.: 13 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Thermal barrier coating typically comprising of bondcoat and yttrium stabilized zirconium topcoat, has been used to improve
the efficiency of turbine engine by providing the capability to sustain significant temperature gradient across the coating.
Alumina and zirconia composite coating was proposed as a potential candidate to improve the qualities of thermal barrier
coating system due to its low melting point and high hardness. The gas tunnel type plasma system, which has high energy
density and also high efficiency, is useful for smart plasma processing. The characteristics of the obtained ceramic coatings
such as Al₂O₃ and ZrO₂ coatings were superior to the conventional ones. The ZrO₂ composite coating has the possibility of the
development of high functionally graded TBC (thermal barrier coating). In this study, the performance such as the mechanical
properties, thermal behavior and high temperature oxidation resistance of the alumina/zirconia functionally graded TBCs
produced by gas tunnel type plasma spraying was investigated and discussed. The results showed that the alumina/zirconia
composite system exhibited the improvement of mechanical properties of thermal barrier coatings and oxidation resistance. |
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