本工作将Bi_2Pb_(0.5)Sr_2Cu_5O_x 的非晶态基材在流通氧气气氛中长期保温,获得了足以达到测量其多种物理性能的尺寸的晶须。用X 射线衍射及电子衍射研究了晶须的结构,电探针和配有能谱的扫描电镜研究了晶须的成分及形貌。本文还讨论了不掺Pb 元素及部分晶化的基材对晶须生长的影响。
The superconducting whiskers which were long enough for the measurements ofmany physical properties have been prepared by heating an amorphous plate in a steady streamof oxygen atmosphere.The morphologies of the whiskers were observed by SEM;their crystal
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