Transmission electron microscopy investigation of Bi-based HTS tapes
| Autor: | J.W. Burgoyne, Crm Grovenor, M.J. Goringe, David Dew-Hughes, C.J. Eastell, C.G. Morgan, B.M. Henry |
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| Rok vydání: | 2016 |
| Předmět: |
Superconductivity
High-temperature superconductivity Materials science Scanning electron microscope Annealing (metallurgy) Condensed Matter Physics Electronic Optical and Magnetic Materials Amorphous solid law.invention Planar Transmission electron microscopy law Grain boundary Electrical and Electronic Engineering Composite material |
| Popis: | Bi(Pb)-2223/Ag powder in tube tapes have been examined by TEM. 5The tapes show good alignment and phase purity in the SEM but TEM investigations revealed a number of fine-scale, current-limiting, features. Such features include variation in grain boundary structure, amorphous phases at twist grain boundaries, residual 2212 layers present at grain boundaries and inside grains, and secondary phases. The Ag/superconductor interface has been shown to be relatively planar with no amorphous phases with the Bi(Pb)-2223 having near perfect c-axis alignment at the interface. © 1997 IEEE. |
| Databáze: | OpenAIRE |
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