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Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/1613

Title: 高効率ジルコニア固体電解質型燃料電池の開発(I) : 高性能スカンジア安定化ジルコニア固体電解質
Other Titles: コウ コウリツ ジルコニア コタイ デンカイシツガタ ネンリョウ デンチ ノ カイハツ (I) : コウセイノウ スカンジア アンテイカ ジルコニア コタイ デンカイシツ 
Development of Solid Oxide Fuel Cells Using Efficient Zirconia Electrolyte (I) : High Performance Scandia-Stabilized Zirconia Electrolyte
Authors: 平野, 正典
織田, 隆之
渡邉, 慎治
鵜飼, 健司
水谷, 安伸
HIRANO, Masanori
ODA, Takayuki
UKAI, Kenji
MIZUTANI, Yasunobu
Issue Date: 20-Jan-2003
Publisher: 愛知工業大学
Abstract: Sc_2O_3 (scandia)-doped cubic zirconia electrolyte with high electrical conductivity sintered at low temperature and scandia-doped tetragonal zirconia electrolyte having improved mechanical strength were developed. 1 mol% Bi_2O_3-10 mol% Sc_2O_3-doped zirconia with cubic structure sintered at 1200°C had sufficient conductivity of 0.33 S/cm at 1000°C and did not show cubicrhombohedral phase transformation. Dense zirconia ceramics fabricated by sintering at 1300℃ for 1 h in air followed by hot isostatic pressing (HIP) at 196 MPa at 1450℃ for 1.5 h in an Ar gas atmosphere, which consisted of submicrometer-sized grains of tetragonal phases and were stabilized with 5 and 6 mol% Sc_2O_3, exhibited high strength (1330 MPa and 1140 MPa, respectively) and good conductivity (0.15 S/cm and 0.18 S/cm at 1000℃, respectively).
URI: http://hdl.handle.net/11133/1613
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