The microscopic mechanism of silicon precipitation in Al/Si system

V. Y. Zenou; A. Kiv; D. Fuks; V. Ezerski; N. Moiseenko

doi:10.1016/j.msea.2006.07.095

The microscopic mechanism of silicon precipitation in Al/Si system

V. Y. Zenou, A. Kiv, D. Fuks, V. Ezerski, N. Moiseenko

Department of Materials Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A Homo-Heterogeneous Mechanism (HHM) for the precipitation of silicon atoms in aluminum is proposed. The main point of HHM is that the formation of critical nucleus consists of two steps. At the first step the pre-critical nucleus is formed. It plays a role of a preferable site for the further hetero-nucleation and then for the growth of Si precipitates on these nuclei. The reported results are based on ab initio calculations of total energy for equilibrium configurations of silicon clusters embedded into aluminum lattice. HHM explains the results of experimental studies of silicon precipitation in quenched Si-Al alloy obtained in this work and by other authors.

Original language	English
Pages (from-to)	556-563
Number of pages	8
Journal	Materials Science and Engineering: A
Volume	435-436
DOIs	https://doi.org/10.1016/j.msea.2006.07.095
State	Published - 5 Nov 2006

Keywords

Ab initio calculations
Al-Si compounds
Quenching
Si clusters embedded into Al

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.07.095

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title = "The microscopic mechanism of silicon precipitation in Al/Si system",

abstract = "A Homo-Heterogeneous Mechanism (HHM) for the precipitation of silicon atoms in aluminum is proposed. The main point of HHM is that the formation of critical nucleus consists of two steps. At the first step the pre-critical nucleus is formed. It plays a role of a preferable site for the further hetero-nucleation and then for the growth of Si precipitates on these nuclei. The reported results are based on ab initio calculations of total energy for equilibrium configurations of silicon clusters embedded into aluminum lattice. HHM explains the results of experimental studies of silicon precipitation in quenched Si-Al alloy obtained in this work and by other authors.",

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T1 - The microscopic mechanism of silicon precipitation in Al/Si system

AU - Zenou, V. Y.

AU - Kiv, A.

AU - Fuks, D.

AU - Ezerski, V.

AU - Moiseenko, N.

PY - 2006/11/5

Y1 - 2006/11/5

N2 - A Homo-Heterogeneous Mechanism (HHM) for the precipitation of silicon atoms in aluminum is proposed. The main point of HHM is that the formation of critical nucleus consists of two steps. At the first step the pre-critical nucleus is formed. It plays a role of a preferable site for the further hetero-nucleation and then for the growth of Si precipitates on these nuclei. The reported results are based on ab initio calculations of total energy for equilibrium configurations of silicon clusters embedded into aluminum lattice. HHM explains the results of experimental studies of silicon precipitation in quenched Si-Al alloy obtained in this work and by other authors.

AB - A Homo-Heterogeneous Mechanism (HHM) for the precipitation of silicon atoms in aluminum is proposed. The main point of HHM is that the formation of critical nucleus consists of two steps. At the first step the pre-critical nucleus is formed. It plays a role of a preferable site for the further hetero-nucleation and then for the growth of Si precipitates on these nuclei. The reported results are based on ab initio calculations of total energy for equilibrium configurations of silicon clusters embedded into aluminum lattice. HHM explains the results of experimental studies of silicon precipitation in quenched Si-Al alloy obtained in this work and by other authors.

KW - Ab initio calculations

KW - Al-Si compounds

KW - Quenching

KW - Si clusters embedded into Al

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DO - 10.1016/j.msea.2006.07.095

M3 - Article

AN - SCOPUS:33748895048

SN - 0921-5093

VL - 435-436

SP - 556

EP - 563

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

The microscopic mechanism of silicon precipitation in Al/Si system

Abstract

Keywords

ASJC Scopus subject areas

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