کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1490021 | 992316 | 2011 | 6 صفحه PDF | دانلود رایگان |
Rare earth and alkaline earth co-doped Ce0.85La0.10Ca0.05O2−δ electrolyte material with the powder obtained by solid-state reaction method was sintered at 1300, 1400, 1500 and 1600 °C respectively. The results showed that the ionic conductivity of the sample sintered at 1400 °C was slightly lower compared to that sintered at 1500 °C in the temperature range of 300–550 °C, while the sample sintered at 1400 °C showed the highest ionic conductivity in all the samples above 550 °C. The ionic conductivity of ∼0.021 S/cm at 600 °C and the relative density of 98.2% were observed for the sample sintered at 1400 °C. In addition, the highest flexural strength with 145 MPa was also obtained for the sample sintered at 1400 °C. It suggested that the sintering temperature for Ce0.85La0.10Ca0.05O2−δ electrolyte may be reduced to as low as 1400 °C with desired properties.
Journal: Materials Research Bulletin - Volume 46, Issue 1, January 2011, Pages 130–135