Environmental protection of Nb/Nb^sub 5^Si^sub 3^-based alloys by E/TBC systems

Environmental/thermal barrier coatings (E/TBCs) were applied on an Nb/Nb5Si3-based alloy. The substrate material with the nominal composition Nb-23Ti-4Hf-3Cr-6Al-20Si (at.%) was manufactured by plasma melting. Rectangular platelets of this alloy were coated with chromia-silica forming M7Si6-based (M...

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Veröffentlicht in:	Intermetallics 2018-02, Vol.93, p.169
Hauptverfasser:	Braun, Reinhold, Schulz, Uwe, Portebois, Léo, Mathieu, Stéphane, Vilasi, Michel, Drawin, Stefan
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloy systems Alloys Ambient temperature Boron Ceramic bonding Ceramic coatings Chemical reactions Chromium oxides Cobalt Cyclic testing Electron beams Electron microscopy Environmental protection Failure mechanisms Gadolinium Grit Iron Nickel Niobium Oxidation Platelets Protective coatings Scale (corrosion) Scanning electron microscopy Silicon base alloys Silicon dioxide Substrates Yttria-stabilized zirconia
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