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http://dx.doi.org/10.6111/JKCGCT.2013.23.1.037

Preparation and characterization of La0.8Sr0.2Ga0.8Mg0.1Co0.1O3-δ electrolyte using glycine-nitrate process  

Ok, Kyung-Min (School of Materials Science Engineering, Pusan National University)
Kim, Kyeong-Lok (School of Materials Science Engineering, Pusan National University)
Kim, Tae-Wan (School of Materials Science Engineering, Pusan National University)
Kim, Dong-Hyun (School of Materials Science Engineering, Pusan National University)
Park, Hee-Dae (Department of Electrical and Electronic Engineering, Kyungsung University)
Sung, Youl-Moon (Department of Electrical and Electronic Engineering, Kyungsung University)
Park, Hong-Chae (School of Materials Science Engineering, Pusan National University)
Yoon, Seog-Young (School of Materials Science Engineering, Pusan National University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.23, no.1, 2013 , pp. 37-43 More about this Journal
Abstract
Conductivity of LSGMC materials were affected by secondary phase segregation, composition and synthetic route. $La_{0.8}Sr_{0.2}Ga_{0.8}Mg_{0.1}Co_{0.1}O_{3-{\delta}}$ (LSGMC) powders were prepared using the glycine nitrate process to produce high surface area and compositionally homogeneous powders. The powders were synthesized with different 0.5, 1, 1.5, 2, 2.5 of glycine/cation molar ratios. A single perovskite phase from the synthesized powders was characterized with X-ray diffraction patterns. The obtained sintered pellets showed the dense grain microstructure. In case of 1.5 molar ratio, its density was higher than the others. The electrical conductivity measured at $800^{\circ}C$ was observed to be 0.131 $Scm^{-1}$. In addition, the linear thermal expansion behavior was indicated between $25^{\circ}C$ and $800^{\circ}C$.
Keywords
LSGMC; Ion conductivity; Glycine nitrate process;
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Times Cited By KSCI : 2  (Citation Analysis)
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