Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-20T16:36:58.332Z Has data issue: false hasContentIssue false
  • English
  • Français

Atomic Structure Determination of Nio-Y2O3 Interfaces by HRTEM

Published online by Cambridge University Press:  02 July 2020

E.C. Dickey  and
V.P. Dravid
E.C. Dickey
Affiliation:
Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506
V.P. Dravid
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208
Get access

Extract

The investigation of interfaces between NiO and Y2O3 is part of a research initiative to understand low-energy heterophase interface structures between different oxide materials. In-situ oxide composites formed by the directional solidification of pseudo-binary eutectics are used as model materials in this study because they are amenable to chemical and structural characterization at the atomic length-scale. Previously, interfaces in NiO-ZrO2(cubic) directionally solidified eutectics (DSEs) were examined by various electron imaging and spectroscopy techniques to reveal the three-dimensional interface structure.[l] The second DSE system studied, NiO-Y2O3,[2] was chosen because it is very similar in crystallography to NiO-ZrO2(cubic). The goal of this second, analogous study is not only to understand the NiO-Y2O3 interface structure but, by comparing the results to NiO-ZrO2, is to draw more general conclusions about low energy oxide-oxide interfaces. Table one compares the crystallography of the NiO-ZrO2 and the NiO-Y2O3 DSEs.

Type
Atomic Structure and Mechanisms at Interfaces in Materials
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 649 - 650
Copyright
Copyright © Microscopy Society of America 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Dickey, E.C., Dravid, V.P., Neilist, P., Wallis, D.J., Pennycook, S.J., “ Three-Dimensional Atomic Structure of NiO-ZrO2(cubic) Interfaces,” submitted to Acta Materialia.Google Scholar
Fragneau, M., Revcolevschi, A., “Crystallography of Directionally Solidified NiO-Y2O3 Eutectic,” J. Am Ceram. Soc. (1982) C-102.10.1111/j.1151-2916.1982.tb10474.xCrossRefGoogle Scholar