Residual Stress Measurements of Alumina-Zirconia Ceramics by Time-of-Flight Neutron Diffraction

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Residual Stress Measurements of Alumina-Zirconia Ceramics by Time-of-Flight Neutron Diffraction

K. Fan, J. Ruiz-Hervias, J. Gurauskis, C. Baudin

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Abstract. Neutron strain scanning and Rietveld analysis were used to study the residual stresses in Al2O3/Y-TZP ceramic composites fabricated by different green processing techniques (a novel tape casting and conventional slip casting) and with different zirconia content. The results show that the residual stresses in zirconia particulates are tensile and the ones in alumina matrix are compressive, with almost flat through-thickness residual stress profiles in all bulk samples. The residual stresses for both phases were mainly dependent on the zirconia content, irrespective of the measurement direction and the fabrication process.

Keywords
Ceramic Composites, Residual Stress, Neutron Diffraction, Tape Casting

Published online 12/22/2016, 6 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: K. Fan, J. Ruiz-Hervias, J. Gurauskis, C. Baudin, ‘Residual Stress Measurements of Alumina-Zirconia Ceramics by Time-of-Flight Neutron Diffraction’, Materials Research Proceedings, Vol. 2, pp 157-162, 2017

DOI: http://dx.doi.org/10.21741/9781945291173-27

The article was published as article 27 of the book Residual Stresses 2016

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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