Microwave assisted synthesis,sinterability and properties of Ca-Zn co-doped LaCrO_3 as interconnect material for IT-SOFCs

• Published in: Journal of rare earths Vol. 28; no. 1; pp. 153 - 157
• Main Author: 陈永红 卢肖永 丁岩芝 刘杏芹 孟广耀
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2010; Department of Chemistry,Huainan Normal University,Huainan 232001,China%Department of Chemistry,Huainan Normal University,Huainan 232001,China; Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China%Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China
• Subjects: conductivity; doped lanthanum chromite; interconnect ceramics; IT-SOFCs; rare earths; IT-SOFCs; interconnect ceramics; conductivity; doped lanthanum chromite; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(09)60070-3

The interconnect materials La0.7Ca0.3Cr1-xZnxO3-δ(x=0,0.01,0.03,0.05,0.07) were prepared by a microwave assisted sol-gel auto-ignition process.The crystalline structures of the samples were characterized by X-ray diffraction(XRD) and the lattice parameters were evaluated with Rietveld method.For Ca-Zn co-doped LaCrO3 with x=0.03,the sintering activity was improved,and the relative density came up to 96.5% for the sample sintered at 1300 oC for 10 h.The electrical conductivity of the samples was increased fr...