𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Fabrication of Ag/(Bi,Pb)SrCaCuO superconducting tapes

✍ Scribed by Y.B Huang; G.F de la Fuente; M.T Ruiz; A Larrea; A Badia; F Lera; C Rillo; R Navarro

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
709 KB
Volume
33
Category
Article
ISSN
0011-2275

No coin nor oath required. For personal study only.

✦ Synopsis

Ag-sheathed Bi-2223 mono-and multifilamentary superconducting tapes have been obtained from wires produced by the powder-in-tube method. The tapes have been characterized by scanning electron and polarized optical microscopy, together with critical current density (Jc and Jc(B)) measurements. A systematic study of the processing parameters (annealing time and temperature, compaction pressure and number of cycles) has led to an optimized procedure for the fabrication of high Jc monofilamentary (2.1 x 104 A cm -2 at 77 K and zero field) tapes. Multifilamentary tapes have also been obtained with Jc as high as 1.35 x 104 A cm -2 at 77 K and zero field.

📜 SIMILAR VOLUMES

Strength and critical current density of
Strength and critical current density of Bi(Pb)SrCaCuO and YBaCuO in silver-sheathed superconducting tapes
✍ S. Ochiai; K. Hayashi; K. Osamura 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 793 KB

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

Magnetic flux distribution and magnetic
Magnetic flux distribution and magnetic relaxation in polycrystalline Bi,PbSrCaCuO superconductors
✍ J. Paasi; M. Polák; M. Lahtinen; V. Plecháček; L. Söderlund 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 683 KB

We have studied magnetic flux distribution and magnetic relaxation in polycrystalline (Bi,Pb)2Sr2Ca2Cu3Olo+x superconductors at 77 K using a movable miniature Hall sensor. Flux distribution was studied by measuring magnetic field profiles as a function of external field and time. The effects of int

Improvement of strain endurance of criti
Improvement of strain endurance of critical current of silver-sheathed superconducting tapes by reducing volume fraction of Bi(Pb)SrCaCuO oxide core
✍ S. Ochiai; K. Hayashi; K. Osamura 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 456 KB

High T c Bi(Pb)-Sr-Ca-Cu-O core/silver sheath superconducting composite tapes with various volume fractions of oxide core (0.05-0.5) were prepared by the powder-in-tube method. The influence of the volume fraction of the oxide core on the strain endurance of the critical current density at 0 T at 77

Growth mechanism of high Tc phase in lea
Growth mechanism of high Tc phase in leaded BiSrCaCuO system
✍ T. Hatano; K. Aota; H. Hattori; S. Ikeda; K. Nakamura; K. Ogawa 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 358 KB

The growth mechanism of the high T c phase in the leaded Bi-Sr-Ca-Cu-O system has been studied. It is shown that the crystal growth of the high T c phase takes place with the coexistence of a partial melting phase. A growth mechanism is proposed in which the high T c phase precipitates from the melt