Thermoelectric power of SrCe0.95Y0.05O3−δ

✍ Scribed by Erik O Ahlgren

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 305 KB
• Volume: 97
• Category: Article
• ISSN: 0167-2738
• DOI: 10.1016/s0167-2738(97)00072-6

✦ Synopsis

Thermoelectric power and electrical conductivity of SrCe Y O have been determined in a range of atmospheres 0.95 0.05 32d and temperatures. The thermoelectric power is negative in reducing and positive in oxidizing atmospheres. The data indicate 25

a transition at about 800-10008C at oxygen partial pressure ¯10 atm between regimes with different type of main charge carrier. Low oxygen partial pressure data do not indicate any conductivity contribution from n-type electronic carriers. The water vapour partial pressure dependence is found to be in accordance with theory and shows that these experiments can be used to detect proton conductivity.