Modeling segregation and convection during the growth of ternary alloys under terrestrial and microgravity conditions

Jeffrey J. Derby; N. Ponde; V. F. De Almeida; A. Yeckel

doi:10.4028/www.scientific.net/msf.329-330.93

Modeling segregation and convection during the growth of ternary alloys under terrestrial and microgravity conditions

Jeffrey J. Derby, N. Ponde, V. F. De Almeida, A. Yeckel

Chemical Engineering and Materials Science

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

The growth of large single-crystals of exacting quality presents some of the most difficult challenges in materials processing. Two numerical studies relevant to understanding microgravity crystal growth experiments are presented. Using a 1D finite element (FE) model for transient solidification with a moving boundary coupled with the Stefan-Maxwell equation for species transport, one assesses the validity of a pseudo-binary approximation to describe segregation phenomena during diffusion limited growth of a model ternary alloy. The other uses a simplified FE model for 3D transient fluid flow for Bridgman growth. Initial results from both studies are presented.

Original language	English (US)
Pages (from-to)	93-98
Number of pages	6
Journal	Materials Science Forum
Volume	329
DOIs	https://doi.org/10.4028/www.scientific.net/msf.329-330.93
State	Published - 2000
Event	Proceedings of the 1999 3rd International Conference on Solidification and Gravity - Miskolc, Hung Duration: Apr 25 1999 → Apr 28 1999

Access

10.4028/www.scientific.net/msf.329-330.93

Fingerprint Dive into the research topics of 'Modeling segregation and convection during the growth of ternary alloys under terrestrial and microgravity conditions'. Together they form a unique fingerprint.

Cite this

@article{911249f23a40430598d35c3483cd325b,

title = "Modeling segregation and convection during the growth of ternary alloys under terrestrial and microgravity conditions",

abstract = "The growth of large single-crystals of exacting quality presents some of the most difficult challenges in materials processing. Two numerical studies relevant to understanding microgravity crystal growth experiments are presented. Using a 1D finite element (FE) model for transient solidification with a moving boundary coupled with the Stefan-Maxwell equation for species transport, one assesses the validity of a pseudo-binary approximation to describe segregation phenomena during diffusion limited growth of a model ternary alloy. The other uses a simplified FE model for 3D transient fluid flow for Bridgman growth. Initial results from both studies are presented.",

author = "Derby, {Jeffrey J.} and N. Ponde and {De Almeida}, {V. F.} and A. Yeckel",

note = "Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; Proceedings of the 1999 3rd International Conference on Solidification and Gravity ; Conference date: 25-04-1999 Through 28-04-1999",

year = "2000",

doi = "10.4028/www.scientific.net/msf.329-330.93",

language = "English (US)",

volume = "329",

pages = "93--98",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - Modeling segregation and convection during the growth of ternary alloys under terrestrial and microgravity conditions

AU - Derby, Jeffrey J.

AU - Ponde, N.

AU - De Almeida, V. F.

AU - Yeckel, A.

PY - 2000

Y1 - 2000

N2 - The growth of large single-crystals of exacting quality presents some of the most difficult challenges in materials processing. Two numerical studies relevant to understanding microgravity crystal growth experiments are presented. Using a 1D finite element (FE) model for transient solidification with a moving boundary coupled with the Stefan-Maxwell equation for species transport, one assesses the validity of a pseudo-binary approximation to describe segregation phenomena during diffusion limited growth of a model ternary alloy. The other uses a simplified FE model for 3D transient fluid flow for Bridgman growth. Initial results from both studies are presented.

AB - The growth of large single-crystals of exacting quality presents some of the most difficult challenges in materials processing. Two numerical studies relevant to understanding microgravity crystal growth experiments are presented. Using a 1D finite element (FE) model for transient solidification with a moving boundary coupled with the Stefan-Maxwell equation for species transport, one assesses the validity of a pseudo-binary approximation to describe segregation phenomena during diffusion limited growth of a model ternary alloy. The other uses a simplified FE model for 3D transient fluid flow for Bridgman growth. Initial results from both studies are presented.

UR - http://www.scopus.com/inward/record.url?scp=0033900286&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033900286&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/msf.329-330.93

DO - 10.4028/www.scientific.net/msf.329-330.93

M3 - Conference article

AN - SCOPUS:0033900286

VL - 329

SP - 93

EP - 98

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

T2 - Proceedings of the 1999 3rd International Conference on Solidification and Gravity

Y2 - 25 April 1999 through 28 April 1999

ER -