The critical current density at 77 K at 0 T and the tensile strength at room temperature of high Tc Bi(Pb)-Sr-Ca-Cu-O and Y-Ba-Cu-O oxides in silver-sheathed tapes prepared by the powder-in-tube method were investigated. The main results can be summarized as follows. (1) The critical current density
Determination of full penetration field of YBaCuO hollow cylinders by low Ic YBaCuO superconducting probe: temperature dependence
✍ Scribed by P. Fournier; M. Oussena; M. Aubin
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 463 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
A novel method of measuring the temperature dependence of the full penetration field, Hp, of polycrystalline Y-Ba-Cu-O hollow cylinders (T O = 92 K) is reported. The probe, placed in the centre of the cylinder, is a polycrystalline Y-Ba-Cu-O bar whose critical current or flux flow voltage is measured as a function of applied magnetic field. Both approaches yield sharp peaks corresponding to the same precise values of Hp. In addition, the flux flow mode allows a study of the effect of the demagnetizing factor.
📜 SIMILAR VOLUMES
Large samples of textured Y-Ba-Cu-O were prepared at the Texas Center for Superconductivity using a continuous process. These were cut into a rectangular shape with typical dimensions 4.0 cm × 0.5 cm x 0.25 cm. The large physical size of these samples and their ability to carry high currents particu
An Y-Ba-Cu-O compound containing a small quantity of added fluorine was developed which exhibited magnetization curves at 77 K very similar to those of practical superconductors used at 4.2 K such as Nb-Ti and Nb3Sn. When formed in bulk, the compound is made up of grains which are closely connected