Title
Precursor Dependent Microstructure Evolution and Nonstoichiometry in Nanostructured Cerium Oxide Coatings Using the Solution Precursor Plasma Spray Technique
Abbreviated Journal Title
J. Am. Ceram. Soc.
Keywords
THERMO-PHYSICAL PROCESSES; BARRIER COATINGS; MIXED OXIDES; DROPLETS; CEO2; DECOMPOSITION; NANOPARTICLES; ELECTROLYTES; SUSPENSION; PARTICLES; Materials Science, Ceramics
Abstract
A solution precursor plasma spray (SPPS) technique has been used for direct deposition of cerium oxide nanoparticles (CNPs) from various cerium salt solutions as precursors. Solution precursors were injected into the hot zone of a plasma plume to deposit CNP coatings. A numerical study of the droplet injection model has been employed for microstructure development during SPPS. The decomposition of each precursor to cerium oxide was analyzed by thermogravimetric-differential thermal analysis and validated by thermodynamic calculations. The presence of the cerium oxide phase in the coatings was confirmed by X-ray diffraction studies. Transmission electron microscopy studies confirmed nanocrystalline (grain size < 14 nm) characteristic of the coatings. X-ray photoelectron spectroscopy studies indicated the presence of a high concentration of Ce(3+) (up to 0.32) in the coating prepared by SPPS. The processing and microstructure evolution of cerium oxide coatings with high nonstoichiometry are reported.
Journal Title
Journal of the American Ceramic Society
Volume
93
Issue/Number
11
Publication Date
1-1-2010
Document Type
Article
Language
English
First Page
3700
Last Page
3708
WOS Identifier
ISSN
0002-7820
Recommended Citation
"Precursor Dependent Microstructure Evolution and Nonstoichiometry in Nanostructured Cerium Oxide Coatings Using the Solution Precursor Plasma Spray Technique" (2010). Faculty Bibliography 2010s. 800.
https://stars.library.ucf.edu/facultybib2010/800
Comments
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