Melting of Bi nanoparticles embedded in a Zn matrix

Goswami, R. ; Chattopadhyay, K. (2004) Melting of Bi nanoparticles embedded in a Zn matrix Acta Materialia, 52 (19). pp. 5503-5510. ISSN 1359-6454

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We report the melting behavior of nanometric-Bi particles embedded in the zinc matrix synthesized by the rapid solidification processing. These particles have specific orientation relation with the matrix given by {0001}Zn ǁ {10-12}Bi and <11-20>Zn nearly ǁ <1-210>Bi. A change in melting behavior is observed on thermal cycling. The differential scanning calorimetry (DSC) results reveal that a fraction of Bi particles melts at 91-95 K below the bulk melting temperature during the second DSC-cycle. It is shown that the division of a single crystalline nano-Bi particle into several grains during solidification results in the significant reduction in melting, which can be explained by the phenomenological theory of melting.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:6586
Deposited On:22 Oct 2010 06:32
Last Modified:30 May 2011 07:16

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