Controlled partial melting of dipcoated Bi-2212/Ag ribbons for combined isobaric and isothermal processing in reduced oxygen atmospheres

被引：0

作者：

Crossley, AL ^{[1
]}

MacManus-Driscoll, JL ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Ctr High Temp Supercond, London SW7 2BP, England

来源：

APPLIED SUPERCONDUCTIVITY 1997, VOLS 1 AND 2: VOL 1: SMALL SCALE AND ELECTRONIC APPLICATIONS; VOL 2: LARGE SCALE AND POWER APPLICATIONS | 1997年 / 158期

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D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A detailed study has been made of the control and optimisation of partial melting of dipcoated Bi-2212/Ag ribbons using reduced oxygen partial pressures. A coulometric titration technique has been employed to vary the oxygen partial pressure in a region of the phase diagram corresponding to binary melting and the amount of partial melting has been quantified. it has been shown that complete melting of the Bi-2212 for short time periods is required for achieving optimum ribbon microstructure. The information has been used to process ribbons using either or both isothermal and isobaric methods. The combined method was found to be most effective Fully connected ribbons with only minor quantities of second phases have been obtained.

引用

页码：881 / 884

页数：4

共 22 条

[21] IMPROVEMENT OF J(C) OF AG-SHEATHED BI-2212 TAPES USING MELT-GROWTH TECHNIQUE UNDER REDUCED OXYGEN PARTIAL-PRESSURE
YOSHIDA, M
ENDO, A
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1993, 32 (10B): : L1509 - L1512
[22] Critical current density for Bi2Sr2CaCu2Ox/Ag tapes prepared using an isothermal partial melting method under controlled atmospheres
Funahashi, R
Matsubara, I
Ogura, T
Ueno, K
Ishikawa, H
PHYSICA C, 1997, 273 (3-4): : 337 - 341

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