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 syst
Growth of 1212 phase PbSrYCaCuO single crystals
✍ Scribed by H. Jin; Z.J. Chen; L.Z. Cao; G.E. Zhou; Z.W. Mao
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 226 KB
- Volume
- 148
- Category
- Article
- ISSN
- 0022-0248
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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
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