C-ring strength of advanced monolithic ceramics

A. A. Wereszczak, R. J. Caspe, J. J. Swab, S. F. Duffy, E. H. Baker

Research output: Contribution to journalConference articlepeer-review

Abstract

Alumina, silicon carbide, silicon nitride, and zirconia are common candidate ceramics for load-bearing tubular components. To help facilitate design and reliability modeling with each ceramic, Weibull strength distributions were determined with each material using a diametrally compressed c-ring specimen in accordance with ASTM C1323. The investigated silicon nitride and zirconia were found to exhibit higher uncensored characteristic strengths than the alumina and silicon carbide. The occurrence of chamfer-located fracture initiation was problematic, and hindered the ability to generate valid design data in some of these ceramics. Fractography and stress modeling results suggest that some aspects of ASTM C1323 should be revised to further minimize the frequency of chamfer-located failure initiation in c-ring test specimens.

Original languageEnglish
Pages (from-to)483-490
Number of pages8
JournalCeramic Engineering and Science Proceedings
Volume24
Issue number4
StatePublished - 2003
Event27th International Cocoa Beach Conference on Advanced Ceramics and Composites: B - Cocoa Beach, FL, United States
Duration: Jan 26 2003Jan 31 2003

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