Crystallization process of Bi(Pb)-Sr-Ca-Cu-O glass |
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Authors: | Hua Jin Zhuangqi Hu Qingmin Liu Yunlong Ge Changxu Shi |
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Institution: | (1) Institute of Metal Research, Academia Sinica, 110015 Shenyang, People's Republic of China |
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Abstract: | A crystallization study has been carried out for rapidly solidified Bi2Pb0.5Sr2Ca4Cu5Ox glass. Glass transition temperature T
g, crystallized superconducting phases and microstructural changes were measured and analysed by differential thermal analysis (DTA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The crystallization mechanism of the three superconducting phases — (2201) 20 K phase, (2212) 80 K phase, and (2223) 110 K phase — has been discussed, and a time-temperature-transformation diagram for the glass has been constructed. |
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Keywords: | 74 70 -b 81 20 Pe 81 40 -z |
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