Singh, Alok ; Dash, Sitaram ; Kamruddin, Mohammed ; Ajikumar, Puthupparampil K. ; Tyagi, Ashok K. ; Raghunathan, Vinjamoor S. ; Baldev Raj, (2002) Formation of nanocrystalline calcia by the decomposition of calcite Journal of the American Ceramic Society, 85 (4). pp. 927-932. ISSN 0002-7820
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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1151-...
Related URL: http://dx.doi.org/10.1111/j.1151-2916.2002.tb00194.x
Abstract
Formation of nanocrystalline calcia from calcite has been studied in situ via transmission electron microscopy. The crystallographic transformation occurred via two mechanisms: the first is by distortion of the cleaved rhombohedron of calcite, formed by {104} planes in hexagonal coordinates, into a cube. This produced a microstructure of oriented, elongated nanocrystals of calcia with planar boundaries. In the second mechanism, the micrometer-sized parent calcite particles broke up into nano-sized grains as the decomposition began, leading to irregularly shaped, randomly oriented nanocrystals of calcia.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Decomposition; Nanoparticulates; Orientation |
| ID Code: | 40424 |
| Deposited On: | 24 May 2011 05:48 |
| Last Modified: | 24 May 2011 05:48 |
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