Hexagonal eutectic solidification patterns operating near a marginal stability point

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dc.creatorPerrut, Mikael
dc.creatorAkamatsu, Silvère
dc.creatorBottin-Rousseau, Sabine
dc.creatorFaivre, Gabriel
dc.date2008-09-11
dc.date.accessioned2026-07-07T10:02:12Z
dc.date.available2026-07-07T10:02:12Z
dc.descriptionWe study the long-time dynamics of hexagonal directional-solidification patterns in bulk samples of a transparent eutectic alloy using an optical method which permits real-time observation of the growth front. A slow dilatation of the patterns due to a slight curvature of the isotherms drives the system into a permanent regime, close to the threshold for the rod splitting instability. Thus an apparently minor instrumental imperfection suffices to maintain the system near a marginal stability point. This answers the long-standing question of spacing selection in bulk eutectic growth.
dc.identifierhttps://arxiv.org/abs/0809.1920
dc.identifierhttp://arxiv.org/abs/0809.1920
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168890
dc.subjectPattern Formation and Solitons
dc.subjectMaterials Science
dc.titleHexagonal eutectic solidification patterns operating near a marginal stability point
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