Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1991.11a
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- Pages.269-273
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- 1991
Effect of Pb dopped on BiSrCaCuO system
BiSrCaCuO계의 Pb첨가 효과
- Published : 1991.11.22
Abstract
High Tc oxide superconductor with a Tc above 100 K has been successfully prepared by solid state reaction method in added-Pb BiSrCaCuO system. As compared with 123 compound, the formation reaction of the high Tc requires long time heat treatment. It is due to the transformation from the low Tc phase to high Tc phase. The sintering just below the melting point of the calcined powder mixture is effective on the formation of the high Tc phase in BiSrCaCuO system to be added with Pb. The growth of the high Tc superconducting phase has a thin plate shape, which is characterized by the c parameter of 37
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