Journal article
Effect of sintering on structure of nanodiamond
Diamond and related materials, v 14(10), pp 1721-1729
2005
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Recent successful industrial applications of ultra dispersed diamond have triggered additional scientific interest in its structure and surface properties, as well as changes in these properties upon various post-treatments. In this work, we report a systematic study of the structure of nanocrystalline diamond powder before and after sintering by using multi-wavelength Raman spectroscopy, high resolution transmission electron microscopy, and sorption measurements. Purified nanodiamond powder showed the presence of amorphous carbon and carbon onions and had a specific surface area of about 200 m
2/g. Sintering performed for 3 min at 4.5–7 GPa of quasi-hydrostatic pressure at 1400 °C resulted in the decrease of sp
2 carbon content in the diamond sample, an increase in the average size of diamond grains, and noticeable broadening of the grain size distribution. Sintered nanodiamond retained a porous structure and demonstrated a specific surface area of about 135 m
2/g. The produced material can be used as a fine abrasive powder, as a stationary phase in chromatography or as a durable bio-compatible membrane (filter) for bio-medical applications. This work demonstrated the successful sintering of nanodiamond and could be used for optimizing the production process of the porous nanocrystalline diamond with desired characteristics.
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Details
- Title
- Effect of sintering on structure of nanodiamond
- Creators
- G.N Yushin - Department of Materials Science and Engineering and A. J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USAS Osswald - Department of Materials Science and Engineering and A. J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USAV.I Padalko - ALIT Inc., Kiev, 03067, UkraineG.P Bogatyreva - V.N. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Kiev, 04074, UkraineY Gogotsi - Department of Materials Science and Engineering and A. J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USA
- Publication Details
- Diamond and related materials, v 14(10), pp 1721-1729
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000232071200023
- Scopus ID
- 2-s2.0-24144475987
- Other Identifier
- 991014878374404721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Coatings & Films
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter