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Journal of Materials Science

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01-05-2012

Electron microscopy characterization of hot-pressed Al substituted Li₇La₃Zr₂O₁₂

Authors: J. Wolfenstine, J. Sakamoto, J. L. Allen

Published in: Journal of Materials Science | Issue 10/2012

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Abstract

Hot-pressing was used to prepare a dense (97% relative density) cubic Al substituted Li₇La₃Zr₂O₁₂ material at temperatures lower than typically used for solid-state and/or liquid phase sintering. Electron microscopy analysis revealed equiaxed grains, grain boundaries, and triple junctions free of amorphous and second phases and no Al segregation at grain boundaries. These results suggest that Al₂O₃ and/or Al cannot act as a sintering aid by reducing grain boundary mobility. If Al₂O₃ acts as a sintering aid its main function is to enter the lattice as Al to increase the point defect concentration of the slowest moving species.

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Title: Electron microscopy characterization of hot-pressed Al substituted Li7La3Zr2O12
Authors: J. Wolfenstine
J. Sakamoto
J. L. Allen
Publication date: 01-05-2012
Publisher: Springer US
Published in: Journal of Materials Science / Issue 10/2012
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-012-6300-y

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