MIXED CONDUCTIVITY OF YTTRIUM-DOPED STRONTIUM TITANATE UNDER HIGH TEMPERATURE REDUCING CONDITIONS

机译：高温还原条件下掺钇钛酸锶的混合电导率

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Strontium titanate doped with yttrium was identified as an electronically conducting ceramic at moderately low oxygen pressures, typical of fuel cell anode atmospheres. The conductivity of Sr_(1-3x/2)Y_xTiO_3 at x = 0.08 was found to be 63 S/cm at 800℃ and 10~(-19) atm oxygen pressure. The conductivity shows little dependence on Po_2 in the range 10~(-14) to 10~(-20) atm. Substitution of other rare earths such as La at x = 0.5 yielded a conductivity of 18 S/cm under the same conditions. The ionic conductivity of Y-SrTiO_3 was determined to be 6 x 10? S/cm.

机译：掺杂钇的钛酸锶被鉴定为在中等低氧压下的电子陶瓷，这是燃料电池阳极气氛的典型特征。 x = 0.08时，Sr_（1-3x / 2）Y_xTiO_3的电导率在800℃和10〜（-19）atm的氧气压力下为63 S / cm。在10〜（-14）至10〜（-20）atm范围内，电导率对Po_2的依赖性很小。在相同条件下，以x = 0.5替代其他稀土元素（例如La）可得到18 S / cm的电导率。确定Y-SrTiO_3的离子电导率为6×10 -4。 S /厘米

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《Fourth International Symposium on Ionic and Mixed Conducting Ceramics, null》||p.67-74|共8页
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Shiqiang Hui; Anthony Petric;
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Department of Materials Science and Engineering McMaster University, Hamilton, Ontario, Canada L8S 4L7;

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MIXED CONDUCTIVITY OF YTTRIUM-DOPED STRONTIUM TITANATE UNDER HIGH TEMPERATURE REDUCING CONDITIONS

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