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Microcracking Contributions to the Toughness of ZrO_2-Based Ceramics

Faber, K. T. (1984) Microcracking Contributions to the Toughness of ZrO_2-Based Ceramics. In: Science and technology of zirconia II. Advances in Ceramics. No.12. American Ceramic Society , Columbus, OH, pp. 293-305. ISBN 0916094642. https://resolver.caltech.edu/CaltechAUTHORS:20140916-143540784

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Abstract

Analyses are presented to evaluate two microcrack toughening situations in Zr_O2-based ceramics. The first analysis considers toughening due to stress-induced microcracking of residually strained monoclinic ZrO_2 particles. The second assesses microcracking that occurs as a consequence of the stress-induced tetragonal-monoclinic transformation. Both toughening mechanisms are characterized by a permanent dilatational strain and a modulus reduction; however, only the latter may result in a toughness enhancement or reduction. Conditions under which toughness enhancement and reduction are observed are established. The magnitudes of toughening increases from transformation-toughening and microcrack-toughening are also compared.


Item Type:Book Section
Alternate Title:Microcracking Contributions to the Toughness of ZrO2-Based Ceramics
Additional Information:© 1984 The American Ceramic Society. This research was supported in part by The Ohio State University Office of Research and Graduate Studies under the University Small Research Grant Program.
Funders:
Funding AgencyGrant Number
Ohio State UniversityUNSPECIFIED
Series Name:Advances in Ceramics
Issue or Number:12
Record Number:CaltechAUTHORS:20140916-143540784
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140916-143540784
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49752
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:16 Sep 2014 22:05
Last Modified:03 Oct 2019 07:16

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