Stable Conductive Contacts to High Critical Temperature Superconducting Oxides (Materials Research)

SBIR第一阶段奖强调实用稳定的研究 接触高转变温度陶瓷超导体。 这项研究可能会导致多层的发展， （金属导体/过渡层/超导体）结构 其在烧结至接近900 ℃的温度期间是稳定的， 其保持与超导体的低接触电阻。 这些多层接触件将对上述热循环稳定。 并且低于超导临界温度。 进行 氧化膜将沉积在适当的衬底上，然后 超导氧化物将通过丝网沉积在这些材料上 印刷 然后将试样在 适当的高温。 薄膜的化学分析 将使用扫描俄歇显微镜和能量 扫描电子显微镜上的色散光谱。 这种材料结构将适合于制造 具有超导临界的超导电线和电缆 温度超过770 K。 这条线将用于 超导磁体、电力传输等。

This SBIR Phase I Award emphasizes research on practical stable contacts to high transition temperature ceramic superconductors. the research could lead to the development of multilayer structures of (metal-conductor/transition-layer/superconductor) which are stable during sintering to temperatures near 9000C and which maintain low contact resistance to the superconductor. These multilayer contacts will be stable to thermal cycling above and below the superconducting critical temperature. Conducting oxide films will be deposited on appropriate substrates, and then superconducting oxides will be deposited on these by screen printing. The specimens will then be sintered at the appropriate high temperature. Chemical analysis of the films will be made using scanning auger microscopy and energy dispersive spectroscopy on a scanning electron microscope. This material structure would be suitable for fabrication of superconducting wire and cable with superconducting critical temperature over 770K. This wire would be used for superconducting magnets, power transmission, etc.