Damage mechanisms, life prediction, and development of EB-PVD thermal barrier coatings for turbine airfoils
Thermal barrier coatings (TBCs) must successfully resist damage from a variety of environmental and mechanical mechanisms to be viable on turbine airfoils. This paper reviews engine-operative TBC damage mechanisms and the requirements for life methods that enable a designer and engine operator to ac...
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| Veröffentlicht in: | Surface & coatings technology 2007-12, Vol.202 (4), p.658-664 |
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| container_end_page | 664 |
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| container_issue | 4 |
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| container_title | Surface & coatings technology |
| container_volume | 202 |
| creator | Strangman, Tom Raybould, Derek Jameel, Ahsan Baker, Wil |
| description | Thermal barrier coatings (TBCs) must successfully resist damage from a variety of environmental and mechanical mechanisms to be viable on turbine airfoils. This paper reviews engine-operative TBC damage mechanisms and the requirements for life methods that enable a designer and engine operator to achieve acceptable TBCed component lives. Understanding TBC damage mechanisms facilitates development of advanced TBCs. The following damage mechanisms are discussed:
•
growth and cracking of the bond coating's thermally grown oxide and its interfaces
•
molten deposit (sulfate salt and calcia–magnesia–alumina–silicate) wicking into TBC
•
sintering shrinkage, particle impact, bond coating creep |
| doi_str_mv | 10.1016/j.surfcoat.2007.06.067 |
| format | Article |
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•
growth and cracking of the bond coating's thermally grown oxide and its interfaces
•
molten deposit (sulfate salt and calcia–magnesia–alumina–silicate) wicking into TBC
•
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•
growth and cracking of the bond coating's thermally grown oxide and its interfaces
•
molten deposit (sulfate salt and calcia–magnesia–alumina–silicate) wicking into TBC
•
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•
growth and cracking of the bond coating's thermally grown oxide and its interfaces
•
molten deposit (sulfate salt and calcia–magnesia–alumina–silicate) wicking into TBC
•
sintering shrinkage, particle impact, bond coating creep</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2007.06.067</doi><tpages>7</tpages></addata></record> |
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| ispartof | Surface & coatings technology, 2007-12, Vol.202 (4), p.658-664 |
| issn | 0257-8972 1879-3347 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences CMAS Cross-disciplinary physics: materials science rheology EB-PVD Exact sciences and technology Life prediction Materials science Metals. Metallurgy Nonmetallic coatings Physics Production techniques Surface treatment Surface treatments Thermal barrier coating Turbine Zirconia |
| title | Damage mechanisms, life prediction, and development of EB-PVD thermal barrier coatings for turbine airfoils |
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