| Project/Area Number |
26420690
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
UCHIKOSHI Tetsuo 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (90354216)
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| Co-Investigator(Kenkyū-buntansha) |
石垣 隆正 法政大学, 生命科学部, 教授 (40343842)
鈴木 達 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (50267407)
辻本 吉廣 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主任研究員 (50584075)
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| Co-Investigator(Renkei-kenkyūsha) |
KOBAYASHI KIYOSHI 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (90357020)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | ランタンシリケート / 酸化物イオン伝導体 / 結晶磁気異方性 / 固体酸化物形燃料電池 / c軸配向 / 結晶配向 / コロイドプロセス / SOFC |
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| Outline of Final Research Achievements |
Single-phased lanthanum silicate oxyapatite (LSO) powder was fabricated by solid state reaction between lanthanum hydroxide and silica powders. Dense, c-axis-oriented LSO ceramics were successfully fabricated using magnetic field-assisted colloidal processing technique followed by sintering. Anisotropic electric property and microstructure were characterized using the textured dense, polycrystalline LSO bulk ceramics. It was revealed that the c-axis of LSO is the easy-magnetization axis and higher electric conductivity was observed along the c-axis direction. About 3 times higher SOFC performance was demonstrated by using c-axis oriented LSO electrolyte compared to the use of randomly oriented LSO electrolyte.
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