- Tytuł:
- Characteristics of Samaria-Doped Ceria Prepared by Pechini Method
- Autorzy:
-
Arabacı, A.
Serin, Ö. - Powiązania:
- https://bibliotekanauki.pl/articles/1401934.pdf
- Data publikacji:
- 2015-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 88.30.pn
- Opis:
- CeO₂ ceramics doped with 20 mol.% samarium (SDC-20) were prepared through the Pechini process. The samples were calcined at 400, 700 and 1000°C. The sintering behavior of the calcined SDC-20 powders was also investigated at 1400°C for 6 h. Microstructural and physical properties of SDC-20 samples were characterized with X-ray diffraction, scanning electron microscopy, thermogravimetry and impedance analysis methods. The results of the thermogravimetry/differential thermal analysis and X-ray diffraction indicated that a single-phase fluorite structure formed at a relatively low calcination temperature of 400°C. It is understood from the measured ionic conductivity values that the pellet formed from the SDC-20 samples calcined at 1000°C had lower resistance of grain-boundary than those of the pellets formed from the SDC-20 samples calcined at 400 and 700°C. The maximum ionic conductivity was measured as 1.95× 10⁻² S cm⁻¹ at 800°C for the sintered SDC-20 pellet obtained from SDC-20 powders calcined at 1000°C.
- Źródło:
-
Acta Physica Polonica A; 2015, 128, 2B; B-118-B-121
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł