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Ultrafast high-temperature sintering of Li7La3Zr1.75Nb0.25Al0.15O12 (LLZO).

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Title: Ultrafast high-temperature sintering of Li7La3Zr1.75Nb0.25Al0.15O12 (LLZO).
Authors: Kern, Adam1 (AUTHOR), McGinn, Paul J.1 (AUTHOR) pmcginn@nd.edu
Source: Journal of the European Ceramic Society. Dec2022, Vol. 42 Issue 16, p7501-7507. 7p.
Subjects: Sintering, Critical currents, Solid state batteries
Abstract: Rapid sintering of Li 7 La 3 Zr 1.75 Nb 0.25 Al 0.15 O 12 (LLZO) is reported. The selection of heating elements, the effect of powder preparation and MgO additions in rapid sintered LLZO are described. Annealing LLZO powder at 750 ºC for 2 h in argon immediately before pressing helped to minimize porosity. A 15–20 s hold at 1372 ºC was sufficient to achieve densities >97%. The total sintering schedule time for rapid sintering represents a 99.7% decrease in sintering time compared to conventional sintering. At 70 °C under a pressure of 4.12 MPa cells had a critical current density of 1020 µA/cm2. • Sintering for 20 s 1372 ºC produced 97% dense samples. • Total sintering schedule time represents a 99.7% decrease. • Rapid sintering lowered average grain size and improved density. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the European Ceramic Society is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 159433053
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Ultrafast high-temperature sintering of Li7La3Zr1.75Nb0.25Al0.15O12 (LLZO).
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  Data: <searchLink fieldCode="AR" term="%22Kern%2C+Adam%22">Kern, Adam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22McGinn%2C+Paul+J%2E%22">McGinn, Paul J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> pmcginn@nd.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+European+Ceramic+Society%22">Journal of the European Ceramic Society</searchLink>. Dec2022, Vol. 42 Issue 16, p7501-7507. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Sintering%22">Sintering</searchLink><br /><searchLink fieldCode="DE" term="%22Critical+currents%22">Critical currents</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+state+batteries%22">Solid state batteries</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Rapid sintering of Li 7 La 3 Zr 1.75 Nb 0.25 Al 0.15 O 12 (LLZO) is reported. The selection of heating elements, the effect of powder preparation and MgO additions in rapid sintered LLZO are described. Annealing LLZO powder at 750 ºC for 2 h in argon immediately before pressing helped to minimize porosity. A 15–20 s hold at 1372 ºC was sufficient to achieve densities >97%. The total sintering schedule time for rapid sintering represents a 99.7% decrease in sintering time compared to conventional sintering. At 70 °C under a pressure of 4.12 MPa cells had a critical current density of 1020 µA/cm2. • Sintering for 20 s 1372 ºC produced 97% dense samples. • Total sintering schedule time represents a 99.7% decrease. • Rapid sintering lowered average grain size and improved density. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the European Ceramic Society is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.jeurceramsoc.2022.08.054
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 7501
    Subjects:
      – SubjectFull: Sintering
        Type: general
      – SubjectFull: Critical currents
        Type: general
      – SubjectFull: Solid state batteries
        Type: general
    Titles:
      – TitleFull: Ultrafast high-temperature sintering of Li7La3Zr1.75Nb0.25Al0.15O12 (LLZO).
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            NameFull: Kern, Adam
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            NameFull: McGinn, Paul J.
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              Text: Dec2022
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              Y: 2022
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              Value: 42
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              Value: 16
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            – TitleFull: Journal of the European Ceramic Society
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