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通过X射线衍射、差热分析、电子显微镜、超导电性测量等手段研究了研磨对Y-123和Bi(Ph)-2223超导相和成相过程的影响。结果表明:研磨对Y-123和Bi(Ph)-2223超导相的影响显著不同,研磨导制了Bi(Ph)-2223超导相的破坏。同时指出Bi(Ph)-2223超导相同一结构特征的两种属性:好的可塑性和结构易破坏性。前者是优点,后者是缺点。在加工、测量、使用过程中,要尽力避免后一缺点带来的超导电性的破坏或由于局部结构破坏而导致的整体性能的降低。
The effects of grinding on the superconducting phases of Y-123 and Bi (Ph) -2223 were investigated by X-ray diffraction, differential thermal analysis, electron microscopy and superconductivity measurements. The results show that the effects of grinding on the superconducting phases of Y-123 and Bi (Ph) -2223 are significantly different. Grinding leads to the destruction of the superconducting phase of Bi (Ph) -2223. Two properties of the same structural feature of Bi (Ph) -2223 superconductors are also pointed out: good plasticity and structural destrucibility. The former is a merit, the latter is a disadvantage. In the process of processing, measuring and using, we should try our best to avoid the shortcomings of the superconductivity caused by the damage or due to local structural damage caused by the overall performance degradation.