A new approach to protect and extend longevity of the thermal barrier coating by an impermeable layer of silicon nitride

A sample representation of a gas turbine engine blade, consisting of a nickel superalloy substrate with a deposited thermal barrier coating (TBC), was covered with silicon nitride, Si3N4, as an impermeable layer using plasma enhanced chemical vapor deposition (PECVD). The silicon nitride layer was u...

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Veröffentlicht in:	Journal of the American Ceramic Society 2023-10, Vol.106 (10), p.6221-6229
Hauptverfasser:	Bakkar, Said, Zucha, Elora, Beam, Joseph, Flanagan, Will H, Dixit, Satish, Hossain, Tim Z
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum chemical vapor deposition Electron microscopes Gas turbine engines High temperature Magnesium Nickel base alloys Photomicrographs Plasma enhanced chemical vapor deposition plasma spraying Silicon nitride Silicon oxides Substrates Superalloys Surface reactions Thermal barrier coatings Yttria-stabilized zirconia Yttrium oxide zirconia: yttria stabilized Zirconium dioxide
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