Preparation of Bi-Pb-Sr-Ca-Cu-O Micro-powder by Sol-Gel Method

Abstract

Abstract: This paper reports the preparation processes of Bi-Pb-Sr-Ca-Cu-Omicro-powder by Sol-Gel method, using metal acetates as starting materials. Wanalyzed the mechanisms of decomposition of synthesized powders and their crystallization behavior by means of thermo-gravimetric analysis, differential thermal analysis, infrared spectra and X-ray diffraction. Also we determined the sizes of powder decomposed at different temperatures by using transmission electron microscope. Meanwhile a high -T_cceramic superconductor which has 2223 as the main phase and zero resistance 105Kwas fabricated by using these micro-powders.

Key words: Sol-gel method, Micron-powder, High-Tc ceramic superconductor

TrendMD:

Xu Qin-lun, Peng Ding-kun, Meng Guang-yao, Yu Dong, Bie Li-jian, Wei Zheng-hui, Yang Li. Preparation of Bi-Pb-Sr-Ca-Cu-O Micro-powder by Sol-Gel Method[J]. Chem. J. Chinese Universities, 1991, 12(12): 1568.

References

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