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Zr, Hf, Mo and W-containing oxide phases as pinning additives in Bi-2212 superconductorстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Makarova M.V., Kazin P.E., Tretyakov Y.D., Jansen M., Reissner M., Steiner W.
- Журнал: Physica C: Superconductivity and its Applications
- Том: 419
- Номер: 1-2
- Год издания: 2005
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 61
- Последняя страница: 69
- DOI: 10.1016/j.physc.2004.12.003
- Аннотация: Phase formation was investigated in Bi-Sr-Ca-Cu-M-O (M = Mo, W) systems at 850-900 degreesC. It was found that Sr(2)CaMO(6) phases were chemically compatible with Bi-2212. The composites Bi-2212-Sr(2)CaMO(6) and Bi-2212-SrAO(3) (A = Zr, Hf) were obtained from a sol-gel precursor using crystallisation from the melt. The materials consisted of Bi-2212 matrix and submicron or micron grains of the corresponding dispersed phase. T(c) was equal or exceeded that for undoped Bi-2212, reaching T(c) = 97 K in the Mo-containing composite. The composites exhibited enhanced pinning in comparison with similar prepared pure Bi-2212, especially at T = 60 K. The best pinning parameters were observed for the Bi-2212-Sr(2)CaWO(6) composite. (C) 2004 Elsevier B.V. All rights reserved.
- Добавил в систему: Казин Павел Евгеньевич