@inproceedings{89703d30bd004715a8ad376b5475a2df,
title = "Nucleation and grain growth kinetics of amorphous to nanocrystalline ceria solid solutions",
abstract = "Nanocrystalline ceria-based thin films are of potential interest for use as gas-sensing layers and electrolytes in micro-Solid Oxide Fuel Cells (micro-SOFC) used for energy supply of next generation portables. In these devices the thin films have to be operated at intermediate to high temperatures (500-1000°C) to be sufficiently high electrical conductive. However, only little is known on the nucleation and grain growth kinetics of pure ceria and its solid solutions when present as nanocrystalline thin film microstructures (average grain size < 100 nm). In this study amorphous, dense and crack-free CeO2 and Ce0.8Gd0.2O1.9-x thin films have been deposited by spray pyrolysis on sapphire. These films were crystallized to biphasic amorphous-nanocrystalline and fully nanocrystalline microstructures upon annealing with respect to time, temperature, heating rate and doping. Nucleation and grain growth kinetics were studied by differential scanning calorimetry, X-ray diffraction analysis with in-situ heating chamber and scanning electron microscopy.",
keywords = "Ceria, Crystallization, Nanocrystalline, Solid oxide fuel cell, Spray pyrolysis",
author = "Rupp, {Jennifer L.M.} and Barbara Scherrer and Gauckler, {Ludwig J.}",
year = "2007",
doi = "10.4028/0-87849-443-x.1339",
language = "English",
isbn = "087849443X",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
number = "PART 2",
pages = "1339--1344",
booktitle = "Recrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III",
edition = "PART 2",
note = "3rd International Conference on Recrystallization and Grain Growth, ReX GG III ; Conference date: 10-06-2007 Through 15-06-2007",
}