Synthesis and sintering properties of (La0,8Ca0,2-xSrx)CrO3 perovskite materials for SOFC interconnect

• Published in: Journal of electroceramics Vol. 17; no. 2-4; pp. 729 - 733
• Main Authors: KIM, Jong-Hee, PECK, Dong-Hyun, SONG, Rak-Hyun, LEE, Gil-Young, SHIN, Dong-Ryul, HYUN, Sang-Hoon, WACKERL, Jürgen, HILPERT, Klaus
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Heidelberg Springer 01.12.2006; Springer Nature B.V
• Subjects: Applied sciences; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; Sintering; Perovskite, (La0,8Ca0,2-xSrx)CrO3; Ceramic interconnect; TEC; Perovskite type compound; Sintering; Thermal expansion coefficient; Lanthanum Calcium Strontium Chromium Oxides; Solid oxide fuel cell (SOFC); Chemical synthesis; Solid oxide fuel cell; Crystalline structure
• ISSN: 1385-3449; 1573-8663
• DOI: 10.1007/s10832-006-6006-0

Issue Title: Special Issue: ICE-2005 International Conference on Electroceramics Synthesis and sintering properties of the (La^sub 0.8^Ca^sub 0.2-x^Sr^sub x^)CrO^sub 3^ samples doped by two alkaline earth metals in comparison to the doped only by one alkaline earth metal were evaluated by phase analysis, sintering properties, thermal expansion behaviors, and electrical conductivity. The sintered (La^sub 0.8^Ca^sub 0.2-x^Sr^sub x^)CrO^sub 3^ (x = 0, 0.05, and 0.1) and (La^sub 0.8^Ca^sub 0.2-x^Sr^sub x^)CrO^sub 3^ (x = 0.2) were found to have orthorhombic and rhombohedral symmetries, respectively. Relative density of the (La^sub 0.8^Sr^sub 0.2^)CrO^sub 3^ sample sintered at 1500^sup ^C for 5 h was lower than that of the (La^sub 0.8^Ca^sub 0.2-x^Sr^sub x^)CrO^sub 3^ (x = 0, 0.05, and 0.1) sample. TECs of the (La^sub 0.8^Ca^sub 0.2-x^Sr^sub x^)CrO^sub 3^ (x = 0, 0.05, 0.1, and 0.2) in air were 11 × 10^sup -6^/^sup ^C, 11.2 × 10^sup -6^/^sup ^C, 11.2 × 10^sup -6^/^sup ^C, and 11.3 × 10^sup -6^/^sup ^C, respectively. The electric conductivity of the (La^sub 0.8^Ca^sub 0.2-x^Sr^sub x^)CrO^sub 3^ sample was determined.[PUBLICATION ABSTRACT]