Effect of partial substitution of calcium for yttrium on the structure and properties of the Y0.9Ca0.1Ba2Cu3O6.8 superconductor
| Autor: | S. V. Pryanichnikov, L. A. Cherepanova, M. V. Degtyarev, S. V. Sudareva, E. I. Kuznetsova, T. P. Krinitsina, Svetlana G. Titova, E. P. Romanov, Yu. V. Blinova |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science chemistry.chemical_element Yttrium Crystal structure Atmospheric temperature range Condensed Matter Physics Microstructure 01 natural sciences Thermal expansion Crystallography chemistry Transmission electron microscopy Impurity Phase (matter) 0103 physical sciences Materials Chemistry 010306 general physics |
| Zdroj: | The Physics of Metals and Metallography. 117:151-159 |
| ISSN: | 1555-6190 0031-918X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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