Kim, C.-S. Hwang, S.I. Kim, S.W. 2024-01-21T01:03:29Z 2024-01-21T01:03:29Z 2021-09-02 2007-05 1229-7801 https://pubs.kist.re.kr/handle/201004/134418 A process to synthesize La0.8Sr0.2CrO3 (LSC), which is a promising material for use as a separator in a soild oxide fuel cell, is investigated in this study. LSC powders without secondary phases could be synthesized with ultrasonic spray pyrolysis and a heat treatment at 1200°C for 20 h: however, it showed an average diameter of 0.6 μm with a wide particle size distribution. On the other hand, LSC powders synthesized with spray pyrolysis at 800°C, heat-treated at 900°C for 5 h, ball-milled and finally heat-treated again at 1200°C for 20 h showed a smaller average diameter of 0.3 μm and narrower size distribution. Very few particles above 0.5 μm were found. Thus, a proper combination of the heat treatment and milling process after spray pyrolysis it determined to be very important in synthesizing fine and uniform LSC perovskite powders. English Korean Ceramic Society Synthesis of homogeneous la0.8Sr0.2CrO3 powders using an ultrasonic spray pyrolysis method Article 10.4191/KCERS.2007.44.5.148 1 Journal of the Korean Ceramic Society, v.44, no.5, pp.148 - 150 Journal of the Korean Ceramic Society 44 5 148 150 scopus kci ART001069223 2-s2.0-34548527501 Article La0.8Sr0.2CrO3 Separator Solid oxide fuel cell Ultrasonic spray pyrolysis