Effect of partial substitution of calcium for yttrium on the structure and properties of the Y0.9Ca0.1Ba2Cu3O
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- 作者：Yu. V. Blinova ; L. A. Cherepanova…
- 关键词：high ; temperature superconductor ; coefficient of thermal expansion ; structure
- 刊名：The Physics of Metals and Metallography
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：117
- 期：2
- 页码：151-159
- 全文大小：2,452 KB
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L. A. Cherepanova (2)
T. P. Krinitsina (1)
E. I. Kuznetsova (1)
S. V. Sudareva (2)
S. G. Titova (2)
S. V. Pryanichnikov (2)
M. V. Degtyarev (1)
E. P. Romanov (1)
1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg, 620990, Russia
2. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences, ul. Amundsena 101, Ekaterinburg, 620016, Russia - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Metallic Materials
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1555-6190
文摘
The crystal structure of the high-temperature Y1–x Ca x Ba2Cu3O6.8 superconductor has been studied in a temperature range of 80–300 K using low-temperature X-ray diffraction analysis; its microstructure has been studied by scanning and transmission electron microscopy. Changes of the bond length in the structure of principal phase and precipitation topology of impurity phases and their compositions have been analyzed. An addition of calcium was shown to increase the environmental tolerance of the principal Y123 phase and its microhardness and ensures the low unchanged coefficient of thermal expansion. All of the facts indicate that the material can be used to manufacture composite superconducting articles.