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Evolution of crystallinity of free gold agglomerates and shape transformation

Nanda, Karuna Kar and Maisels, Arkadi and Kruis, Frank Einar (2011) Evolution of crystallinity of free gold agglomerates and shape transformation. In: RSC Advances, 1 (4). pp. 568-572.

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We report the shape evolution of free gold agglomerates with different morphologies that transform to ellipsoidal and then to spherical shapes during the heating cycle. The shape transformation is associated with a structural transition from polycrystalline to single crystalline. The structural transition temperature is shown to be dependent on the final size of the particles and not on the initial morphologies of the agglomerates. It is also shown that the transition occurs well below the melting temperature which is in contrast with the melt-freeze process reported in the literature.

Item Type: Journal Article
Publication: RSC Advances
Publisher: Royal Society of Chemistry
Additional Information: Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 09 Nov 2011 05:59
Last Modified: 09 Nov 2011 05:59
URI: http://eprints.iisc.ac.in/id/eprint/41949

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