Fabrication of YBa2Cu3O7-δSuperconducting Fibers by the Sol-Gel Method

Umeda, Tetsu; Kozuka, Hiromitsu; Sakka, Sumio

doi:10.1111/j.1551-2916.1988.tb00270.x

Cited by 32 publications

(3 citation statements)

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“…Shape-forming of superconducting ceramics has gained a lot of impetus recently due to the fact that various oxide compounds hitherto unknown have been found to exhibit superconductivity (SC) above the boiling point of liquid nitrogen. This has extended the horizon of various applications of these materials when given specific shapes and configurations (Umeda et al 1988;Enomoto et al 1989;Prakash et al 1989). The shape-forming of one class of oxide superconductors viz.…”

Section: Introductionmentioning

confidence: 99%

Shape-forming and densification of ceramic superconductors

et al. 1991

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Processing studies on varied shape-forming and densification of bulk ceramic superconductor, YBa2Cu307_~, are reported in this paper. Polyvinyl butyral-polyethylene glyeol-trichloroethylene has been found to be the best binder-plasticizer-solvent system in plastic shape-forming. The effect of initial particle morphology on final densification has been the most sensitive single parameter as compared to compaction pressure and final sintering durations at ~ 930°C. 1-2-3 powders of mean particle size ~ 1.94 pm have yielded sintered densities ~ 92~ T.D. albeit with lower oxygen intake 06. 7.

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Section: Introductionmentioning

confidence: 99%

Shape-forming and densification of ceramic superconductors

et al. 1991

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“…Other combinations of alkoxides are possible to be used such as Y-isopropoxide, Ba(OH)2, and Cu-acetate [47], or the most commonly tried combination, acetates of all three components [48,49,50]. The benefits of acetates are that they are a simple compound with a relatively small hydrocarbon chain attached to them, and they are miscible in various solvents such as H2O, methanol and methoxyethanol.…”

Section: Statement Of Problemmentioning

confidence: 99%