منابع مشابه
Coarsening and solidification via solvent-annealing in thin liquid films
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We examine solidification in thin liquid films produced by annealing amorphous Alq 3 (tris-(8-hydroxyquinoline) alu...
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Abstract: The aims of this research were to investigate the effects of semisolid metal (SSM) processing parameters (i.e., shear rates –times – temperatures combinations) on the primary solidification products and isothermal holding duration, subsequent to cessation of stirring on the secondary solidification of Al-Si (A356) alloy. The dendrite fragmentation was found to be the governing m...
متن کاملCoarsening fronts
We characterize the spatial spreading of the coarsening process in the Allen-Cahn equation in terms of the propagation of a nonlinear modulated front. Unstable periodic patterns of the Allen-Cahn equation are invaded by a front, propagating in an oscillatory fashion, and leaving behind the homogeneous, stable equilibrium. During one cycle of the oscillatory propagation, two layers of the period...
متن کاملDomain coarsening in electroconvection.
We report on experimental measurements of the growth of regular domains evolving from an irregular pattern in electroconvection. The late-time growth of the domains is consistent with the size of the domains scaling as t(n). We use two isotropic measurements of the domain size: the structure factor and the domain wall length. Measurements using the structure factor are consistent with t(1/5) gr...
متن کاملGranular Coarsening
The phenomenon of coarsening has been the topic of intensive study, chiefly in material science, where droplets coalesce1,2 or successive layers of material deposited on a substrate form complex morpholgies3,4. These problems are of technological interest because properties of composite materials such as polymer blends and alloys depend on the size and structure of included droplets5,6; likewis...
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ژورنال
عنوان ژورنال: MATERIALS TRANSACTIONS
سال: 2005
ISSN: 1345-9678,1347-5320
DOI: 10.2320/matertrans.46.895