Molecular dynamics simulation of morphological instabilities in solid-fluid interfaces

dc.creator	Costa B.V.
dc.creator	Coura P.Z.
dc.creator	Mesquita O.N.
dc.date	2001
dc.date.accessioned	2013-05-30T01:10:49Z
dc.date.available	2013-05-30T01:10:49Z
dc.date.issued	2013-05-30
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332001000300022
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2001&volume=31&issue=3&spage=483
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/3266
dc.description	We perform molecular dynamics simulations of directional growth of a binary alloy. We fix the temperature gradient, pulling speed, impurity concentration and only vary the impurity segregation coefficient. By changing the range of the Lennard Jones potential of impurity atoms as compared to the range of the potential of solvent atoms, the elastic energy cost causes a decreases of solubility of the impurity atoms into the matrix (solvent) solid phase and consequently a decrease in the impurity segregation coefficient. Within certain range of segregation coefficients, the growing interface is planar; below it, the interface becomes unstable and a cellular structure emerges.
dc.publisher	Sociedade Brasileira de Física
dc.source	Brazilian Journal of Physics
dc.title	Molecular dynamics simulation of morphological instabilities in solid-fluid interfaces

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