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Atomic Scale Analysis of a YSZ Bicrystal Grain Boundary

Published online by Cambridge University Press:  02 July 2020

Y. Lei ,
Y. Ito  and
N. D. Browning
Y. Lei
Affiliation:
Department of Physics (M/C 273), University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL60607-7059
Y. Ito
Affiliation:
Department of Physics (M/C 273), University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL60607-7059
N. D. Browning
Affiliation:
Department of Physics (M/C 273), University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL60607-7059
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Abstract

Yttria-stabilized zirconia (YSZ) has been the subject of many experimental and theoretical studies, due to the commercial applications of zirconia-based ceramics in solid state oxide fuel cells. Since the grain boundaries usually dominate the overall macroscopic performance of the bulk material, it is essential to develop a fundamental understanding of their structure-property relationships. Previous research has been performed on the atomic structure of grain boundaries in YSZ, but no precise atomic scale compositional and chemistry characterization has been carried out. Here we report a detailed analytical study of an [001] symmetric 24° bicrystal tilt grain boundary in YSZ prepared with ∼10 mol % Y2O3 by Shinkosha Co., Ltd by the combination of Z-contrast imaging and electron energy loss spectroscopy (EELS).

The experimental analysis of the YSZ sample was carried out on a 200kV Schottky field emission JEOL 201 OF STEM/TEM4.

Type
Novel Microscopy Assisted Ceramic Developments in Materials Scienceand Nanotechnology (Organized by P. Gai and J. Lee)
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 400 - 401
Copyright
Copyright © Microscopy Society of America 2001

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References

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