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首页> 外文会议>International symposium on solid oxide fuel cells >ELECTRICAL CHARACTERIZATION OF A CHROMIUM ALLOY INTERCONNECT MATERIAL
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ELECTRICAL CHARACTERIZATION OF A CHROMIUM ALLOY INTERCONNECT MATERIAL

机译：铬合金互连材料的电气表征

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The electrical properties of a high-chromium alloy proposed for use as an interconnect material for intermediate temperature solid oxide fuel cells were studied by impedance spectroscopy and four-point resistance techniques. The increasing resistance with time complicated measurement of the resistance in air at moderate temperatures. Even at temperatures as low as 200°C, the resistance of the metal noticeably increased with time. Two samples were heated at 1000°C for 75 hours in air in an effort to simulate the effect of a long-term exposure at 500°C. The samples developed a semiconducting film with a resistance sufficiently large, even at 500°C, to prevent this alloy from being used as an interconnect material by itself. It is possible that a coating may be able to maintain a low contact resistance throughout the lifetime of the cell.
机译：通过阻抗光谱和四点电阻技术研究了用于用作中间温度固体氧化物燃料电池的互连材料的高铬合金的电性能。在中等温度下，在空气中的阻力的时间复杂测量耐时性越来越大。即使在低至200°C的温度下，金属的电阻明显随时间而增加。在1000℃下在空气中加热两个样品，努力模拟长期暴露在500℃下的效果。除了500℃下，样品也具有足够大的电阻的半导体膜，以防止这种合金自身用作互连材料。涂层可能能够在细胞的整个寿命期间保持低接触电阻。

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