Microstructural characterization of quenched melt-textured YBa2Cu3O7-δ materials
| Data(s) |
01/03/1997
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| Resumo |
The microstructure of YBa2Cu3O7-δ (YBCO) materials, melt-textured in air and quenched from the temperature range 900-990°C, has been characterized using a combination of x-ray diffractometry, optical microscopy, scanning electron microscopy, transmission electron microscopy, and energy dispersive x-ray spectrometry. BaCu2O2 and BaCuO2 were found to coexist in samples quenched from the temperature range 920-960°C. The formation of BaCu2O2 preceded the formation of YBCO. Once the YBCO had formed, BaCu2O2 was present at the solidification front filling the space between nearly parallel platelets of YBCO. Large Y2BaCuO5 particles at the solidification front appeared divided into smaller ones as a result of their dissolution in the liquid that quenched as BaCu2O2. |
| Identificador | |
| Publicador |
Materials Research Society |
| Relação |
DOI:10.1557/JMR.1997.0095 Alarco, J.A., Olsson, E., Golden, S.J., Bhargava, A., Yamashita, T., Barry, J.C., & Mackinnon, I.D.R. (1997) Microstructural characterization of quenched melt-textured YBa2Cu3O7-δ materials. Journal of Materials Research, 12(3), pp. 624-635. |
| Fonte |
School of Chemistry, Physics & Mechanical Engineering; Institute for Future Environments; Science & Engineering Faculty |
| Palavras-Chave | #091201 Ceramics #091205 Functional Materials #Energy dispersive x ray spectrometry #Yttrium barium copper oxide #Characterization #Crystal microstructure #Dissolution #Melting #Optical microscopy #Quenching #Scanning electron microscopy #Solidification #Transmission electron microscopy #X ray diffraction analysis #Oxide superconductors |
| Tipo |
Journal Article |
