Processing of Thick-Film Electrodeposited Thallium Oxide Superconductors

R. N. Bhattacharya; P. A. Parilla; R. D. Blaugher

doi:10.1016/0921-4534(93)90154-I

Processing of Thick-Film Electrodeposited Thallium Oxide Superconductors

R. N. Bhattacharya, P. A. Parilla, R. D. Blaugher

Materials Science

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

23 Scopus Citations

Abstract

Thick-film Tl-Ba-Ca-Cu-O superconductors (TBCCO) were synthesized on Ag foil and ceramic substrates using an electrodeposition process. The influence of Ag, initial stoichiometry, and reaction conditions on the phase development of TBCCO films were studied. Films deposited and reacted with no additional thallium source showed 1223 as the major phase, whereas films reacted using a two-zone thallation process showed 2223 as the primary phase formation. The TBCCO samples electrodeposited on Ag foil and annealed using the two-zone thallation process showed a critical current density of 3.2 × 10⁴ A/cm² at 76 K in zero field. The highest critical current density for films reacted without any additional thallium source was near 10⁴ A/cm² at 76 K in zero field.

Original language	American English
Pages (from-to)	475-485
Number of pages	11
Journal	Physica C: Superconductivity and its applications
Volume	211
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(93)90154-I https://doi.org/10.1016/0921-4534(93)90154-I
State	Published - 1993

Bibliographical note

NREL/TP-413-5417

NREL Publication Number

NREL/JA-413-5417

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Cite this

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title = "Processing of Thick-Film Electrodeposited Thallium Oxide Superconductors",

abstract = "Thick-film Tl-Ba-Ca-Cu-O superconductors (TBCCO) were synthesized on Ag foil and ceramic substrates using an electrodeposition process. The influence of Ag, initial stoichiometry, and reaction conditions on the phase development of TBCCO films were studied. Films deposited and reacted with no additional thallium source showed 1223 as the major phase, whereas films reacted using a two-zone thallation process showed 2223 as the primary phase formation. The TBCCO samples electrodeposited on Ag foil and annealed using the two-zone thallation process showed a critical current density of 3.2 × 104 A/cm2 at 76 K in zero field. The highest critical current density for films reacted without any additional thallium source was near 104 A/cm2 at 76 K in zero field.",

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AU - Parilla, P. A.

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Processing of Thick-Film Electrodeposited Thallium Oxide Superconductors

Abstract

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