The effect of shear flow on the dendritic characteristics

Jianyuan Wang; Wei Zhai; Kexin Jin; Changle Chen

doi:10.1016/j.matlet.2011.05.009

The effect of shear flow on the dendritic characteristics

Jianyuan Wang
, Wei Zhai
, Kexin Jin
, Changle Chen

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

6 Scopus citations

Abstract

Directional dendritic growth of transparent succinonitrile (SCN)-3.5wt.% H₂O alloy in the presence of shear flow is in-situ observed. The variation of dendritic characteristics, including growth tilting angle, primary arms spacing, and dendrite tip radius are quantitatively measured in wide flow rate (U) and pulling rate (V) regimes. The experimental data show that, the titling angle towards the upstream side is in proportional to (U/V) ^0.6. This could be explained by the reason that the dendritic growth process is mainly influenced by the solute diffusion competition between lateral direction and normal direction. Based on this, a mathematic model, which agrees well with the experimental data, is proposed to describe the correlation among the dendritic scales, shear flow rate and pulling rate.

Original language	English
Pages (from-to)	2448-2451
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	15-16
DOIs	https://doi.org/10.1016/j.matlet.2011.05.009
State	Published - Aug 2011

Keywords

Crystal growth
Directional solidification
Interfaces
Shear flow
Succinonitrile

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10.1016/j.matlet.2011.05.009

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title = "The effect of shear flow on the dendritic characteristics",

abstract = "Directional dendritic growth of transparent succinonitrile (SCN)-3.5wt.\% H2O alloy in the presence of shear flow is in-situ observed. The variation of dendritic characteristics, including growth tilting angle, primary arms spacing, and dendrite tip radius are quantitatively measured in wide flow rate (U) and pulling rate (V) regimes. The experimental data show that, the titling angle towards the upstream side is in proportional to (U/V) 0.6. This could be explained by the reason that the dendritic growth process is mainly influenced by the solute diffusion competition between lateral direction and normal direction. Based on this, a mathematic model, which agrees well with the experimental data, is proposed to describe the correlation among the dendritic scales, shear flow rate and pulling rate.",

keywords = "Crystal growth, Directional solidification, Interfaces, Shear flow, Succinonitrile",

author = "Jianyuan Wang and Wei Zhai and Kexin Jin and Changle Chen",

year = "2011",

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doi = "10.1016/j.matlet.2011.05.009",

language = "英语",

volume = "65",

pages = "2448--2451",

journal = "Materials Letters",

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TY - JOUR

T1 - The effect of shear flow on the dendritic characteristics

AU - Wang, Jianyuan

AU - Zhai, Wei

AU - Jin, Kexin

AU - Chen, Changle

PY - 2011/8

Y1 - 2011/8

N2 - Directional dendritic growth of transparent succinonitrile (SCN)-3.5wt.% H2O alloy in the presence of shear flow is in-situ observed. The variation of dendritic characteristics, including growth tilting angle, primary arms spacing, and dendrite tip radius are quantitatively measured in wide flow rate (U) and pulling rate (V) regimes. The experimental data show that, the titling angle towards the upstream side is in proportional to (U/V) 0.6. This could be explained by the reason that the dendritic growth process is mainly influenced by the solute diffusion competition between lateral direction and normal direction. Based on this, a mathematic model, which agrees well with the experimental data, is proposed to describe the correlation among the dendritic scales, shear flow rate and pulling rate.

AB - Directional dendritic growth of transparent succinonitrile (SCN)-3.5wt.% H2O alloy in the presence of shear flow is in-situ observed. The variation of dendritic characteristics, including growth tilting angle, primary arms spacing, and dendrite tip radius are quantitatively measured in wide flow rate (U) and pulling rate (V) regimes. The experimental data show that, the titling angle towards the upstream side is in proportional to (U/V) 0.6. This could be explained by the reason that the dendritic growth process is mainly influenced by the solute diffusion competition between lateral direction and normal direction. Based on this, a mathematic model, which agrees well with the experimental data, is proposed to describe the correlation among the dendritic scales, shear flow rate and pulling rate.

KW - Crystal growth

KW - Directional solidification

KW - Interfaces

KW - Shear flow

KW - Succinonitrile

UR - https://www.scopus.com/pages/publications/79957650821

U2 - 10.1016/j.matlet.2011.05.009

DO - 10.1016/j.matlet.2011.05.009

M3 - 文章

AN - SCOPUS:79957650821

SN - 0167-577X

VL - 65

SP - 2448

EP - 2451

JO - Materials Letters

JF - Materials Letters

IS - 15-16

ER -

The effect of shear flow on the dendritic characteristics

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Keywords

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