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Journal of Materials Engineering and Performance

Erschienen in:

20.05.2016

Fabrication of Nanosized Lanthanum Zirconate Powder and Deposition of Thermal Barrier Coating by Plasma Spray Process

verfasst von: S. K. Mishra, N. Jagdeesh, L. C. Pathak

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2016

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Abstract

The present manuscript discusses our findings on fabrication of nanosized lanthanum zirconate powder for thermal barrier coating application and its coating by plasma spray on nickel-based superalloy substrate. Single-phase La₂Zr₂O₇ coating of thickness of the order of 45 µm on the Ni-Cr-Al bond coat coated Ni-based superalloy substrate was deposited by plasma spray process. The layers at the interface did not show spallation and inter diffusion was very less. The microstructure, interface, porosity, and mechanical properties of different layers are investigated. The lanthanum zirconate hardness and modulus were 10.5 and 277 GPa, respectively. The load depth curve for lanthanum zirconate showed good elastic recovery around 74%.

Vorheriger Artikel Corrosion and Wear Response of Oxide-Reinforced Nickel Composite Coatings

Nächster Artikel Modification of Low-Alloy Steel Surface by Plasma Electrolytic Nitriding

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Titel: Fabrication of Nanosized Lanthanum Zirconate Powder and Deposition of Thermal Barrier Coating by Plasma Spray Process
verfasst von: S. K. Mishra
N. Jagdeesh
L. C. Pathak
Publikationsdatum: 20.05.2016
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 7/2016
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-016-2122-4

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