Abstract
The single 110 K phase Bi(Pb)−Sr−Ca−Cu−O superconductor was made by sintering in air. Its zero-resistance temperature is 106 K, and it is an orthorhombic cell witha=5.403 Å,b=5.412 Å andc=37.062 Å. It formed around the low-T c phase. The forming period of the 110 K phase can be shortened by multiple sintering and grinding. If PbO is mixed into the samples after the 85 K phase has formed, the forming rate of the 110 K phase can be increased significantly. EDAX analysis of grain composition confirms that the Pb atoms enter the unit cell, and probably Pb cations replace some Ca cations.
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Jianyi, J., Yupin, S., Fanchun, Z. et al. Preparation and properties of the single 110 K phase Bi(Pb)-Sr-Ca-Cu-O superconductor. Z. Physik B - Condensed Matter 77, 193–195 (1989). https://doi.org/10.1007/BF01313662
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DOI: https://doi.org/10.1007/BF01313662