TY - JOUR
T1 - Effect of the sintering temperature on the properties of Ce 0.85La0.10Ca0.05O2-δ electrolyte material
AU - Zheng, Yifeng
AU - Chen, Cheng
AU - Li, Shujun
AU - Ge, Lin
AU - Chen, Han
AU - Guo, Lucun
PY - 2011/1
Y1 - 2011/1
N2 - Rare earth and alkaline earth co-doped Ce0.85La 0.10Ca0.05O2-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 Ce0.85La0.10Ca 0.05O2-δ electrolyte may be reduced to as low as 1400 °C with desired properties.
AB - Rare earth and alkaline earth co-doped Ce0.85La 0.10Ca0.05O2-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 Ce0.85La0.10Ca 0.05O2-δ electrolyte may be reduced to as low as 1400 °C with desired properties.
KW - A. Ceramics
KW - C. Impedance spectroscopy
KW - D. Ionic conductivity
KW - D. Microstructure
KW - D. Thermal expansion
UR - http://www.scopus.com/inward/record.url?scp=78649632919&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2010.09.028
DO - 10.1016/j.materresbull.2010.09.028
M3 - 文章
AN - SCOPUS:78649632919
SN - 0025-5408
VL - 46
SP - 130
EP - 135
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 1
ER -