Electrical conductivity of scandia-stabilized zirconia thin film
(0) Scandia-stabilized zirconia (SSZ) thin films, ～400 nm thick, were deposited on sapphire substrate by a pulsed-laser deposition (PLD) method. Their structural and transport properties were studied by means of X-ray diffraction and electrical conductivity measurements. The in-plane conductivities of thin films were measured and compared to that of the bulk sample. Although the decrease in ionic conductivity near phase transition temperature (550℃) was still shown in the case of the 10SSZ film, the conductivity drop was much smaller and less abrupt compared to that of bulk samples. With 1 mol% Y2O3 or CeO2 doping, the conductivity curves became linear. However, the conductivity was reduced from that of the undoped 10SSZ film.
Scandia-stabilized zirconia Phase transition Electrical conductivity Thin film electrolyte SOFC
Jong Hoon Joo Gyeong Man Choi
Fuel Cell Research Center and Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, Gyeongbuk 790-784, Republic of Korea
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1209-1213
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）