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 |
|---|---|
| Pages (from-to) | 112-117 |
| Number of pages | 6 |
| Journal | Scripta Materialia |
| Volume | 65 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jul 2011 |
| Externally published | Yes |
Bibliographical note
Funding Information:I.L. wishes to thank the US–Israel Binational Science Foundation for funding this research. The research is also made possible in part by the generosity of the Harold Perlman family.
Funding
I.L. wishes to thank the US–Israel Binational Science Foundation for funding this research. The research is also made possible in part by the generosity of the Harold Perlman family.
| Funders | Funder number |
|---|---|
| United States-Israel Binational Science Foundation |
Keywords
- Chemistry of point defects
- Elastic properties
- Gd-doped ceria
- Solid oxide fuel cells