Bismuth-based superconductors prepared by a solution technique
High-temperature superconductors of the BiSrCaCuO and (Bi, Pb)SrCaCuO systems, with several cation stoichiometries, were prepared by dissolution of the corresponding metallic salts in acetic acid followed by coprecipitation in the presence of oxalic acid. Samples were characterized by X-ray...
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| Veröffentlicht in: | Journal of non-crystalline solids 1990-05, Vol.121 (1), p.448-453 |
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| container_title | Journal of non-crystalline solids |
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| creator | Dos Santos, D.I. Balachandran, U. Guttschow, R.A. Poeppel, R.B. |
| description | High-temperature superconductors of the BiSrCaCuO and (Bi, Pb)SrCaCuO systems, with several cation stoichiometries, were prepared by dissolution of the corresponding metallic salts in acetic acid followed by coprecipitation in the presence of oxalic acid. Samples were characterized by X-ray diffraction, thermal analysis (differential and thermogravimetric), and scanning electron microscopy. Temperature dependence of electrical resistivity was also measured. Samples with zero electrical resistivity at 80 K were obtained easily and reproducibly by this solution technique. Doping with lead seems to stabilize the 110 K phase, providing samples with an onset superconducting temperature of 120 K and zero electrical resistance at 103 K. |
| doi_str_mv | 10.1016/0022-3093(90)90174-K |
| format | Article |
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Samples were characterized by X-ray diffraction, thermal analysis (differential and thermogravimetric), and scanning electron microscopy. Temperature dependence of electrical resistivity was also measured. Samples with zero electrical resistivity at 80 K were obtained easily and reproducibly by this solution technique. Doping with lead seems to stabilize the 110 K phase, providing samples with an onset superconducting temperature of 120 K and zero electrical resistance at 103 K.</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. 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| issn | 0022-3093 1873-4812 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Electrotechnical and electronic ceramics Exact sciences and technology Technical ceramics |
| title | Bismuth-based superconductors prepared by a solution technique |
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