The microstructure of stoichiometric Bridgman melt-textured YBa2Cu307\_6 was investigated by transmission electron microscopy and electron diffraction. Crystal defects like twins, dislocations, small second-phase inclusions and lattice distortions are observed. The density of the dislocations is ext
Fabrication of melt textured YBa2Cu3O7 samples
β Scribed by A. Di Trolio; S. Pace; A. Saggese; A.M. Testa; N. Sparvieri
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 927 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
Textured YBCO samples were produced following the partial-melt method with sample transport. Structural and compositional characterizations, performed by means of XRD and SEM/EDS, show the presence of the 123 with a small amount of 211 inclusions. The investigated samples show a non weak link behaviour in the irreversible magnetic properties at 77 K, with critical current densities Jc = 104 A/c m2 at 2 kOe.
π SIMILAR VOLUMES
It has been shown that Nd 1+x Ba 2-x Cu 3 O 7-x could exhibit a pronounced J c (H) peak effect, which results in an enhancement of the critical current density under the medium range magnetic field. Additions of small quantities of Nd 2 O 3 into Pt-doped YBa 2 Cu 3 O 7-x (Y123) resulted in the forma