Growth mechanism of the directionally solidified Si-TaSi2 eutectic in situ composite

Chunjuan Cui; Jun Zhang; Haijun Su; Lin Liu; Hengzhi Fu

doi:10.1016/j.jcrysgro.2009.02.014

Growth mechanism of the directionally solidified Si-TaSi₂ eutectic in situ composite

Chunjuan Cui
, Jun Zhang
, Haijun Su
, Lin Liu
, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian
Xi'an University of Architecture and Technology

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

14 Scopus citations

Abstract

Although both phases of the Si-TaSi₂ eutectic have high entropy of fusion, the Si-TaSi₂ eutectic structure exhibits a regular morphology (rod-like). This is not consistent with the classical Jackson-Hunt (J-H) theory based on the entropy of fusion. In the present paper, the growth mechanism of the Si-TaSi₂ eutectic is discussed. Jackson factor and the critical kinetic undercooling for the transition from faceted to non-faceted growth of the two phases are calculated. The transition from faceted to non-faceted growth is also observed at the different crystal growth stages in the experiment.

Original language	English
Pages (from-to)	2555-2559
Number of pages	5
Journal	Journal of Crystal Growth
Volume	311
Issue number	8
DOIs	https://doi.org/10.1016/j.jcrysgro.2009.02.014
State	Published - 1 Apr 2009

Keywords

A1. Directional solidification
A1. Entropy of fusion
A1. Jackson factor
A1. Kinetic undercooling
B2. Eutectic in situ composite

Access to Document

10.1016/j.jcrysgro.2009.02.014

Cite this

@article{e8a334a0605449c89855a9a3d41ac2b0,

title = "Growth mechanism of the directionally solidified Si-TaSi2 eutectic in situ composite",

abstract = "Although both phases of the Si-TaSi2 eutectic have high entropy of fusion, the Si-TaSi2 eutectic structure exhibits a regular morphology (rod-like). This is not consistent with the classical Jackson-Hunt (J-H) theory based on the entropy of fusion. In the present paper, the growth mechanism of the Si-TaSi2 eutectic is discussed. Jackson factor and the critical kinetic undercooling for the transition from faceted to non-faceted growth of the two phases are calculated. The transition from faceted to non-faceted growth is also observed at the different crystal growth stages in the experiment.",

keywords = "A1. Directional solidification, A1. Entropy of fusion, A1. Jackson factor, A1. Kinetic undercooling, B2. Eutectic in situ composite",

author = "Chunjuan Cui and Jun Zhang and Haijun Su and Lin Liu and Hengzhi Fu",

year = "2009",

month = apr,

day = "1",

doi = "10.1016/j.jcrysgro.2009.02.014",

language = "英语",

volume = "311",

pages = "2555--2559",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier B.V.",

number = "8",

}

TY - JOUR

T1 - Growth mechanism of the directionally solidified Si-TaSi2 eutectic in situ composite

AU - Cui, Chunjuan

AU - Zhang, Jun

AU - Su, Haijun

AU - Liu, Lin

AU - Fu, Hengzhi

PY - 2009/4/1

Y1 - 2009/4/1

N2 - Although both phases of the Si-TaSi2 eutectic have high entropy of fusion, the Si-TaSi2 eutectic structure exhibits a regular morphology (rod-like). This is not consistent with the classical Jackson-Hunt (J-H) theory based on the entropy of fusion. In the present paper, the growth mechanism of the Si-TaSi2 eutectic is discussed. Jackson factor and the critical kinetic undercooling for the transition from faceted to non-faceted growth of the two phases are calculated. The transition from faceted to non-faceted growth is also observed at the different crystal growth stages in the experiment.

AB - Although both phases of the Si-TaSi2 eutectic have high entropy of fusion, the Si-TaSi2 eutectic structure exhibits a regular morphology (rod-like). This is not consistent with the classical Jackson-Hunt (J-H) theory based on the entropy of fusion. In the present paper, the growth mechanism of the Si-TaSi2 eutectic is discussed. Jackson factor and the critical kinetic undercooling for the transition from faceted to non-faceted growth of the two phases are calculated. The transition from faceted to non-faceted growth is also observed at the different crystal growth stages in the experiment.

KW - A1. Directional solidification

KW - A1. Entropy of fusion

KW - A1. Jackson factor

KW - A1. Kinetic undercooling

KW - B2. Eutectic in situ composite

UR - https://www.scopus.com/pages/publications/65249165472

U2 - 10.1016/j.jcrysgro.2009.02.014

DO - 10.1016/j.jcrysgro.2009.02.014

M3 - 文章

AN - SCOPUS:65249165472

SN - 0022-0248

VL - 311

SP - 2555

EP - 2559

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 8

ER -

Growth mechanism of the directionally solidified Si-TaSi₂ eutectic in situ composite

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this