Bibliographic Details
| 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] |
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| Database: |
Engineering Source |
