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DEFECT STRUCTURE OF THE MIXED-CONDUCTING Sr-Fe-Co-O SYSTEM
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ma, Beihai Balachandran, U. Poeppel R. B. Chao, C.-C. Park, Jung-Hyun |
| Copyright Year | 1996 |
| Abstract | Electrical conductivity of the mixed-conducting Sr-Fe-Co-O system was investigated at high temperatures and various oxygen partial pressures (pO2). The system exhibits not only high combined electrical and oxygen ionic conductivities but also structural stability in both oxidizing and reducing environments. Conductivity of SrFeCo{sub 0.5}O{sub x} increases with temperature and pO2, within the experiment pO2 range (1-10{sup -18} atm). p-type conduction was observed, the activity energy of which decreases with pO2. A model of the defect chemistry in the Sr-Fe-Co-O system is proposed. The pO2- dependent conducting behavior can be understood by considering the trivalent-to-divalent transition of the transition metal ions in the system. |
| Starting Page | 579 |
| Ending Page | 579 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1557/PROC-453-579 |
| Alternate Webpage(s) | https://digital.library.unt.edu/ark:/67531/metadc679289/m2/1/high_res_d/436288.pdf |
| Alternate Webpage(s) | https://doi.org/10.1557/PROC-453-579 |
| Volume Number | 453 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
