Expedited Award for Novel Research: Preliminary Studies of Explosively Fabricated Ceramic/Metal Superconducting Sandwich Geometries

本项目研究了一种利用爆炸冲击波传播技术制备陶瓷氧化物-金属(银)超导复合材料的新方法。这项技术的优点是它不需要大量加热(100摄氏度)。将不同纯度的银粉和钇-钡-铜-氧粉的混合物固结并包裹在银条中。这些材料将被拉拔/轧制成线材，然后进行热处理。将对加工后的成分和前体进行迈斯纳效应(抗磁反应)和转变温度的检查。磁化研究和超导电流传输研究将与洛斯阿拉莫斯国家实验室合作进行。

This project deals with a novel method of fabricating ceramic oxide-metal (silver) superconducting composite using explosive shock wave propagation technique. The advantage of this technique is that it does not involve significant heating (100oC). Mixtures of silver powder and yttrium-barium-copper-oxygen powder of different fractions will be consolidated and encapsulated in silver into bars. These will be drawn/rolled to wires and subsequently heat treated. The processed components and precursors will be examined for Meissner effect (diamagnetic response) and transition temperature. Magnetization studies and superconducting current transport studies will be made in collaboration with the Los Alamos National Laboratories.