Journal article
Synthesis and preliminary characterization of fully dense Ti2SC
Processing and Fabrication of Advanced Materials XV, pp.22-30
01 Jan 2006
Abstract
The layered machinable ternary carbide, Ti2SC, has a significantly shorter c-lattice parameter as compared to most of the 50+ other so-called MAX phase family to which it belongs. In this work, polycrystalline fully dense Ti2SC samples were fabricated - by hot pressing its powder at 1500 deg C at ~ 45 MPa for 5h - for the first time. No peaks other than those associated with Ti2SC were observed in the XRD pattern. Density, SEM and OM observations of the hot pressed samples showed them to be fully dense. The Vickers hardness was measured to be ~ 8 GPa, which is the highest for any of the MAX phases characterized to date. The Young's modulus is 316 GPa. At room temperature small cubes failed at 1.4 GPa; the failure mode was brittle and there was no sign of incipient kink band formation. The latter is attributed partially to the fine grain-size of the HP material.
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Details
- Title
- Synthesis and preliminary characterization of fully dense Ti2SC
- Creators
- Shahram Amini - Drexel UniversityMichel Barsoum - Drexel UniversityTamer S. El-Raghy - Drexel University
- Publication Details
- Processing and Fabrication of Advanced Materials XV, pp.22-30
- Conference
- 15th International Symposium on Processing and Fabrication of Advanced Materials, 15th (Cincinnati, Ohio, United States, 15 Oct 2006 - 19 Oct 2006)
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Identifiers
- 991019170564604721