Title: Flame spray deposition of nanocrystalline dense Ce0.8Gd0.2O2−δ thin films : deposition mechanism and microstructural characterization
Authors : Karageorgakis, Nikolaos I.
Heel, Andre
Graule, Thomas
Gauckler, Ludwig J.
Published in : Solid State Ionics
Volume(Issue) : 192
Issue : 1
Pages : 464
Pages to: 471
Publisher / Ed. Institution : Elsevier
Issue Date: 2011
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (publication)
Language : English
Subjects : CGO; Thin film; Flame spray; Micro-SOFC; Microstructure
Subject (DDC) : 660: Chemical engineering
Abstract: Nanocrystalline dense sub-micron thin films of Ce0.8Gd0.2O2-δ have been successfully deposited by flame spray deposition. The deposition mechanism has been identified as droplet deposition. The deposition temperature of the substrate was as low as 200 °C and the deposition rate ~ 30 nm/min. Under these conditions the droplets have a very limited residence time in the hot zone of the flame and are deposited as liquid, forming smooth films free of particles. They exhibited a dense and crack-free microstructure. Grain growth, lattice constant, crystallographic density and surface roughness have been investigated as a function of annealing temperature. The good quality of the films, in association with the high deposition rates at low deposition temperatures shows the preeminence of the flame spray method for depositing thin films for micro-solid oxide fuel cells.
Departement: School of Engineering
Organisational Unit: Institute of Materials and Process Engineering (IMPE)
Publication type: Article in scientific journal
DOI : 10.1016/j.ssi.2010.04.030
ISSN: 0167-2738
URI: https://digitalcollection.zhaw.ch/handle/11475/9266
Appears in Collections:Publikationen School of Engineering

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