Chang, Jaemyung Lee, Hae-Weon Kang, Suk-Joong L. 2024-01-20T21:34:36Z 2024-01-20T21:34:36Z 2021-09-03 2009-04 0002-7820 https://pubs.kist.re.kr/handle/201004/132622 The present investigation reports a new processing technique that can reduce the sintering temperature of Sr- and Mg-doped lanthanum gallate (LSGM), a good candidate material for the electrolyte of the solid oxide fuel cell (SOFC). When LSGM was sintered at 1623 K for 5 h in N-2 or O-2, the samples were densified over 98% relative density. In contrast, only 93% relative density was achieved after sintering in air, the conventional sintering atmosphere. As a result of better densification in N-2 or O-2, the electrical conductivity of the N-2-sintered and air-annealed or the O-2-sintered sample was higher than that of the air-sintered sample by 30%. This result shows the beneficial effect of N-2 or O-2 sintering of LSGM and provides a high possibility of a low-temperature preparation of an LSGM-based SOFC. English WILEY OXYGEN PARTIAL-PRESSURE GRAIN-GROWTH BEHAVIOR OXIDE-ION CONDUCTOR FUEL-CELLS ANODE ELECTROLYTE LAGAO3 DENSITY SITE Low-Temperature Pressureless Sintering of Sr- and Mg-Doped Lanthanum Gallate Ceramics by Sintering Atmosphere Control Article 10.1111/j.1551-2916.2009.02946.x 1 JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.92, no.4, pp.927 - 930 JOURNAL OF THE AMERICAN CERAMIC SOCIETY 92 4 927 930 scie scopus 000265076000027 2-s2.0-64549135850 Materials Science, Ceramics Materials Science Article OXYGEN PARTIAL-PRESSURE GRAIN-GROWTH BEHAVIOR OXIDE-ION CONDUCTOR FUEL-CELLS ANODE ELECTROLYTE LAGAO3 DENSITY SITE