The effects of excess CuO on the grain growth kinetics, sintering and microstructure of the YBa2Cu3O7_δ superconductor

M. W. Shin; A. I. Kingon; T. M. Hare; C. C. Koch

doi:10.1016/0167-577X(92)90004-4

The effects of excess CuO on the grain growth kinetics, sintering and microstructure of the YBa₂Cu₃O_{7_δ} superconductor

M. W. Shin, A. I. Kingon, T. M. Hare, C. C. Koch

School of Integrated Technology

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

11 Citations (Scopus)

Abstract

The influence of CuO on the grain growth kinetics, densification and microstructure of YBa₂Cu₃O_7-δ was studied. The YBa₂Cu₃O_7-δ material with sufficient liquid phase revealed a grain growth exponent of about 0.25 after isothermal annealing at 990°C. The addition of CuO greatly enhanced the densification during sintering through the presence of the liquid phase. A microstructure containing highly aligned grains (d > 200 μm) was produced by a compositional gradient of CuO powder.

Original language	English
Pages (from-to)	13-18
Number of pages	6
Journal	Materials Letters
Volume	15
Issue number	1-2
DOIs	https://doi.org/10.1016/0167-577X(92)90004-4
Publication status	Published - 1992 Oct

Bibliographical note

Funding Information:
The authorsw ouldlike to thankD r. David Haase for valuabled iscussionsT. his work was supported by a grantf rom the Ofice of BasicE nergyS cience, Departmenot f Energy,u nderG rant No. DE-FGOS-88ER45359F. urtherf inancials upportw asr eceived through the subcontractN o. 87X-SG688V from Martin MariettaE nergyS ystemsD, epartmenot f Energy,O RNL, HTSC Pilot Center.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/0167-577X(92)90004-4

Cite this

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title = "The effects of excess CuO on the grain growth kinetics, sintering and microstructure of the YBa2Cu3O7_δ superconductor",

abstract = "The influence of CuO on the grain growth kinetics, densification and microstructure of YBa2Cu3O7-δ was studied. The YBa2Cu3O7-δ material with sufficient liquid phase revealed a grain growth exponent of about 0.25 after isothermal annealing at 990°C. The addition of CuO greatly enhanced the densification during sintering through the presence of the liquid phase. A microstructure containing highly aligned grains (d > 200 μm) was produced by a compositional gradient of CuO powder.",

author = "Shin, {M. W.} and Kingon, {A. I.} and Hare, {T. M.} and Koch, {C. C.}",

note = "Funding Information: The authorsw ouldlike to thankD r. David Haase for valuabled iscussionsT. his work was supported by a grantf rom the Ofice of BasicE nergyS cience, Departmenot f Energy,u nderG rant No. DE-FGOS-88ER45359F. urtherf inancials upportw asr eceived through the subcontractN o. 87X-SG688V from Martin MariettaE nergyS ystemsD, epartmenot f Energy,O RNL, HTSC Pilot Center.",

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T1 - The effects of excess CuO on the grain growth kinetics, sintering and microstructure of the YBa2Cu3O7_δ superconductor

AU - Shin, M. W.

AU - Kingon, A. I.

AU - Hare, T. M.

AU - Koch, C. C.

N1 - Funding Information: The authorsw ouldlike to thankD r. David Haase for valuabled iscussionsT. his work was supported by a grantf rom the Ofice of BasicE nergyS cience, Departmenot f Energy,u nderG rant No. DE-FGOS-88ER45359F. urtherf inancials upportw asr eceived through the subcontractN o. 87X-SG688V from Martin MariettaE nergyS ystemsD, epartmenot f Energy,O RNL, HTSC Pilot Center.

PY - 1992/10

Y1 - 1992/10

N2 - The influence of CuO on the grain growth kinetics, densification and microstructure of YBa2Cu3O7-δ was studied. The YBa2Cu3O7-δ material with sufficient liquid phase revealed a grain growth exponent of about 0.25 after isothermal annealing at 990°C. The addition of CuO greatly enhanced the densification during sintering through the presence of the liquid phase. A microstructure containing highly aligned grains (d > 200 μm) was produced by a compositional gradient of CuO powder.

AB - The influence of CuO on the grain growth kinetics, densification and microstructure of YBa2Cu3O7-δ was studied. The YBa2Cu3O7-δ material with sufficient liquid phase revealed a grain growth exponent of about 0.25 after isothermal annealing at 990°C. The addition of CuO greatly enhanced the densification during sintering through the presence of the liquid phase. A microstructure containing highly aligned grains (d > 200 μm) was produced by a compositional gradient of CuO powder.

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