Abstract
Measurements of the elastic modulus of pure and doped ceria are summarized from the literature and analyzed with a view towards understanding the experimentally established dependence on temperature, doping level and oxygen vacancy concentration. At least two chemical properties affect the elastic modulus of pure and doped ceria: (i) the presence of vacancies decreases the strength of the chemical bonds; and (ii) low-temperature adaptation of the fluorite structure to the presence of oxygen vacancies is accompanied by an increase in unit cell volume.
Original language | English |
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Pages (from-to) | 112-117 |
Number of pages | 6 |
Journal | Scripta Materialia |
Volume | 65 |
Issue number | 2 |
DOIs | |
State | Published - Jul 2011 |
Keywords
- Chemistry of point defects
- Elastic properties
- Gd-doped ceria
- Solid oxide fuel cells
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- General Materials Science