Formation and description of nano-clusters formed during rapid solidification processes in liquid metals

Rang-su Liu, Ke Jun Dong, Ji Yong Li, Ai Bing Yu, Ri Ping Zou

Research output: Contribution to journalArticleResearchpeer-review

Abstract

In order to understand the formation mechanism of nano-clusters during rapid solidification process in liquid metals, a molecular dynamics (MD) simulation study for a large-scale system consisting of 400 000 atoms of liquid metal Al has been performed. To describe the clusters, especially the nano-clusters formed in the system during rapid solidification processes, a cluster-type index method (CTIM) has been proposed. It is demonstrated that the nano-clusters (such as containing 150 atoms) are formed by combining some middle clusters and they sharply differ from those obtained by gaseous deposition, ionic spray methods and so on. Though the nano-clusters have different shapes, they all have the corners that can be starting points of dendrite growth in solidification processes in liquid metals.

Original languageEnglish
Pages (from-to)612-617
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume351
Issue number6-7
DOIs
Publication statusPublished - 15 Mar 2005
Externally publishedYes

Cite this

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title = "Formation and description of nano-clusters formed during rapid solidification processes in liquid metals",
abstract = "In order to understand the formation mechanism of nano-clusters during rapid solidification process in liquid metals, a molecular dynamics (MD) simulation study for a large-scale system consisting of 400 000 atoms of liquid metal Al has been performed. To describe the clusters, especially the nano-clusters formed in the system during rapid solidification processes, a cluster-type index method (CTIM) has been proposed. It is demonstrated that the nano-clusters (such as containing 150 atoms) are formed by combining some middle clusters and they sharply differ from those obtained by gaseous deposition, ionic spray methods and so on. Though the nano-clusters have different shapes, they all have the corners that can be starting points of dendrite growth in solidification processes in liquid metals.",
author = "Rang-su Liu and Dong, {Ke Jun} and Li, {Ji Yong} and Yu, {Ai Bing} and Zou, {Ri Ping}",
year = "2005",
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Formation and description of nano-clusters formed during rapid solidification processes in liquid metals. / Liu, Rang-su; Dong, Ke Jun; Li, Ji Yong; Yu, Ai Bing; Zou, Ri Ping.

In: Journal of Non-Crystalline Solids, Vol. 351, No. 6-7, 15.03.2005, p. 612-617.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Formation and description of nano-clusters formed during rapid solidification processes in liquid metals

AU - Liu, Rang-su

AU - Dong, Ke Jun

AU - Li, Ji Yong

AU - Yu, Ai Bing

AU - Zou, Ri Ping

PY - 2005/3/15

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AB - In order to understand the formation mechanism of nano-clusters during rapid solidification process in liquid metals, a molecular dynamics (MD) simulation study for a large-scale system consisting of 400 000 atoms of liquid metal Al has been performed. To describe the clusters, especially the nano-clusters formed in the system during rapid solidification processes, a cluster-type index method (CTIM) has been proposed. It is demonstrated that the nano-clusters (such as containing 150 atoms) are formed by combining some middle clusters and they sharply differ from those obtained by gaseous deposition, ionic spray methods and so on. Though the nano-clusters have different shapes, they all have the corners that can be starting points of dendrite growth in solidification processes in liquid metals.

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