Journal article
Structural damage in boron carbide under contact loading
Acta materialia, v 52(13), pp 3921-3927
2004
Abstract
A systematic study of mechanical deformation of boron carbide under contact loading is conducted using scratching and depth-sensing indentation (nanoindentation). Both single crystal and polycrystalline materials are investigated by means of Raman microspectroscopy and transmission electron microscopy (TEM). High resolution TEM images of scratch debris reveal various microstructural changes including formation of nanocrystals, as well as lattice shearing and distortion on nanoscale. Deformation bands and microcracks oriented along the (1
1
3) planes are visible in cross-sectional TEM micrographs of indentations. Narrow amorphous bands and local disordered areas are observed in plan-view TEM images. Evidence for a high-pressure amorphous phase is also presented. It is concluded that scratching and nanoindentation change the microstructure of boron carbide in a similar manner. In addition, the evidence for formation of sp
2 hybridized carbon as a result of structural changes induced by contact loading is found by electron energy loss spectroscopy (EELS).
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Details
- Title
- Structural damage in boron carbide under contact loading
- Creators
- D Ge - Department of Materials Science and Engineering, A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USAV Domnich - Department of Materials Science and Engineering, A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USAT Juliano - Department of Materials Science and Engineering, A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USAE.A Stach - National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USAY Gogotsi - Department of Materials Science and Engineering, A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USA
- Publication Details
- Acta materialia, v 52(13), pp 3921-3927
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000223091100016
- Scopus ID
- 2-s2.0-3042790455
- Other Identifier
- 991014877994404721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering