ELECTRICAL PROPERTIES OF SDC-LSGM COMPOSITE ELECTROLYTES
The electrolytes materials Ce0.85Sm0.15O1.925(SDC) and La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM) were synthesized using glycine-nitrate process (GNP), and the composite electrolytes were prepared by mixing SDC and LSGM (the weight ratio between SDC powder and LSGM powder were 9:1, 8:2, 5:5). Its total conductivity was measured in air. It shows that when the composition was 90wt.%SDC and 10wt.%LSGM, the electrolyte has higher electrical conductivity as compared to SDC in the temperature of 350-800 ℃. The electronic conductivity of SDC-LSGM composite electrolytes were measured by direct current (DC) polarization method using Hebb-Wagner ion blocking cell at 700-800 ℃ in the oxygen partial pressure range of 10-6-10-20 Mpa and compared with results of SDC. Typical polarization curves, which are theoretically predicted, were observed on all the samples. The electronic conductivity of SDC-LSGM composite electrolytes decrease with increasing LSGM content. The ionic transport number ti of all the samples increase with increasing LSGM content.
DAN XU XIAOMEI LIU DUANTING YAN HAOPENG WANG LI PEI DEJUN WANG GUANGYE HAO WENHUI SU SHIFENG XU
State Key Laboratory of Superhard Materials, Department of Physics, Jilin University,Jiefang Road, C Department of Science, Shenyang Institute of Aeronautical Engineering Shenyang 110136, P.R. China
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
279-287
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）