Interfacial microstructure in Y1Ba2Cu3O7-δ high Tc superconductors
Alarco, J. & Dunlop, G.L. (1990) Interfacial microstructure in Y1Ba2Cu3O7-δ high Tc superconductors. Journal de physique. Colloque, C1(1), pp. 959-964.
The microstructures of YBa2Cu3O7-δ ceramics prepared from freeze dried powders and containing an excess of CuO have been studied by analytical electron microscopy. Special attention has been paid to the interfacial microstructure. It was found that a liquid phase formed during sintering between 890°C and 920°C and this promoted grain growth and densification. Both clean grain boundaries and boundaries containing an amorphous intergranular film, which was rich in Cu, have been observed. Both CuO and BaCuO2 were present as secondary phases.
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|Item Type:||Journal Article|
|Additional Information:||Proceeding of the International Congress
Intergranular and Interphase Boundaries in materials
|Keywords:||Barium Compounds--Microstructure, Ceramic Materials--Grain Boundaries, Copper Oxide--Microstructure, Powder Metallurgy--Oxides, Yttrium Compounds--Microstructure, Electron Micrographs, Interfacial Structure, Mixed Oxide Superconductors, Optical Microscopy, Yttrium Barium Copper Oxide, Superconducting Materials|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||06 Nov 2013 22:51|
|Last Modified:||06 Nov 2013 23:04|
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