Stress measurement for nonstoichiometric ceria films based on Raman spectroscopy

H Li, P Zhang, G Li, J Lu, Q Wu, Y Gu - Journal of Alloys and Compounds, 2016 - Elsevier
Stress as an important parameter of thin films can seriously affect on the properties,
performance and long-term stability of the films. Here, we propose a semiquantitative …

Study of Raman peak shift under applied isostatic pressure in rare-earth-doped ceria for evaluation of quantitative stress conditions in SOFCs

F Iguchi, S Onodera, N Sata, H Yugami - Solid State Ionics, 2012 - Elsevier
We studied the relation between the Raman peak shift of the ceria F2g peak and isostatic
pressure in rare-earth-doped ceria, which is used as interlayer in anode-supported SOFCs …

Suitability of Raman spectroscopy for assessing anisotropic strain in thin films of doped ceria

O Kraynis, E Makagon, E Mishuk… - Advanced Functional …, 2019 - Wiley Online Library
A protocol for characterizing relaxation of anisotropic strain in thin films of 10 mol% Eu‐or
Sm‐doped ceria is described. The method is based on comparison of Raman spectra and X …

Anisotropic Strain in Rare-Earth Substituted Ceria Thin Films Probed by Polarized Raman Spectroscopy and First-Principles Calculations

E Sediva, D Bohdanov, GF Harrington… - … Applied Materials & …, 2020 - ACS Publications
Lattice strain in oxygen ion conductors can be used to tune their functional properties for
applications in fuel cells, sensors, or catalysis. However, experimental measurements of thin …

The origin of elastic anomalies in thin films of oxygen deficient ceria, CeO2− x

A Kossoy, AI Frenkel, Y Feldman, E Wachtel, A Milner… - Solid State Ionics, 2010 - Elsevier
Self-supported films of CeO1. 95 display time-scale dependent elastic moduli, a
phenomenon which has been termed the chemical strain effect. In order to probe the …

Anelastic and electromechanical properties of doped and reduced ceria

E Wachtel, AI Frenkel, I Lubomirsky - Advanced Materials, 2018 - Wiley Online Library
Room‐temperature mechanical properties of thin films and ceramics of doped and undoped
ceria are reviewed with an emphasis on the anelastic behavior of the material. Notably, the …

Thin-film chemical expansion of ceria based solid solutions: laser vibrometry study

H Wulfmeier, D Kohlmann, T Defferriere… - Zeitschrift für …, 2022 - degruyter.com
The chemical expansion of Pr0. 1Ce0. 9O2–δ (PCO) and CeO2–δ thin films is investigated
in the temperature range between 600° C and 800° C by laser Doppler vibrometry (LDV). It …

Coupling of strain, stress, and oxygen non-stoichiometry in thin film Pr 0.1 Ce 0.9 O 2− δ

J Sheth, D Chen, JJ Kim, WJ Bowman, PA Crozier… - Nanoscale, 2016 - pubs.rsc.org
Stress and strain in thin films of Pr0. 1Ce0. 9O2− δ, supported on yttria stabilized zirconia
(YSZ) and sapphire substrates, induced by large deviations from oxygen stoichiometry (δ …

Spontaneous stress-induced oxidation of Ce ions in Gd-doped ceria at room temperature

C Munnings, SPS Badwal, D Fini - Ionics, 2014 - Springer
Cerium oxides are widely used within catalysis and fuel cells. The key parameters of
interest, including catalytic activity, transport properties and defect structure are all …

Chemical expansion of CeO2−δ and Ce0.8Zr0.2O2−δ thin films determined by laser Doppler vibrometry at high temperatures and different oxygen partial …

D Kohlmann, H Wulfmeier, M Schewe, I Kogut… - Journal of Materials …, 2023 - Springer
The chemical expansion of ceria (CeO2− δ) and ceria-zirconia (Ce0. 8Zr0. 2O2− δ, CZO80)
thin films is investigated by high-temperature laser Doppler vibrometry (LDV) at …