Journal article
Contact damage accumulation in Ti3SiC2
Journal of the American Ceramic Society, v 81(1), pp 225-228
01 Jan 1998
Abstract
The evolution of deformation-microfracture damage below Hertzian contacts in a coarse-grain Ti3SiC2 is studied. The Hertzian indentation stress-strain response deviates strongly from linearity beyond a well-defined maximum, with pronounced strain-softening, indicating exceptional deformability in this otherwise (elastically) stiff ceramic. Surface and subsurface ceramographic observations reveal extensive quasi-plastic microdamage zones at the contact sites. These damage zones are made up of multiple intragrain slip and intergrain shear failures, with attendant microfracture at high strains. No ring cracks or other macroscopic cracks are observed on or below the indented surfaces. The results suggest that Ti3SiC2 may be ideally suited to contact applications where high strains and energy absorption prior to failure are required. (Author)
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Details
- Title
- Contact damage accumulation in Ti3SiC2
- Creators
- It Low - National Institute of Standards and TechnologySeung Lee - National Institute of Standards and TechnologyBrian Lawn - National Institute of Standards and TechnologyMichel Barsoum - Drexel University
- Publication Details
- Journal of the American Ceramic Society, v 81(1), pp 225-228
- Publisher
- Wiley
- Number of pages
- 4
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000071707800031
- Scopus ID
- 2-s2.0-0031647725
- Other Identifier
- 991019170372504721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Ceramics