Preparation of LSGM powders for low temperature sintering |
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| Authors: | Pyeong-Seok Cho Seung-Young Park Yoon Ho Cho Sun-Jung Kim Yun Chan Kang Toshiyuki Mori Jong-Heun Lee |
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| Institution: | 1. Department of Materials Science and Engineering, Korea University, Seoul, 136-713, Republic of Korea;2. Department of Chemical Engineering, Konkuk University, Seoul 143-701, Republic of Korea;3. National Institute of Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan |
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| Abstract: | La0.8Sr0.2Ga0.8Mg0.2O2.8 powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = (NH4)2CO3]/(La3+] + Sr2+] + Ga3+] + Mg2+])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La0.8Sr0.2Ga0.8Mg0.2O2.8 specimen by low-temperature sintering. |
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