Critical current in YBa2Cu3O7ceramics
β Scribed by E. G. Zwartz; B. A. Judd; E. Batalla; L. S. Wright; W. D. MacDonald; A. J. Otto; H. Sang
- Publisher
- Springer US
- Year
- 1989
- Tongue
- English
- Weight
- 903 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0022-2291
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π SIMILAR VOLUMES
In this paper the critical density for a polycrystalline sample is calculated assuming a model of weakly coupled superconducting grains and the influence of grain size on the maximum tunnelling current is investigated. In addition the Josephson vortices are shown to be bound by the pinning force inh
The influence of various processing parameters on the critical currents obtained in YBCO + Ag composite thick films has been investigated. These include the use of several precursor YBCO inks produced by different calcination procedures, the effect of both processing temperature and cooling rate, an
Critical current versus temperature measurements were carried out in ceramic YBazCuaOr samples. The samples were all prepared using the same sintering procedure, but starting from powders obtained by different wet and dry methods. All samples showed a linear J~ vs. T behaviour, typical of Josephson