Morphological instability and pattern selection in solidifying succinonitrile.
Item
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Title
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Morphological instability and pattern selection in solidifying succinonitrile.
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Identifier
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AAI8915583
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identifier
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8915583
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Creator
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Chou, Henry.
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Contributor
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Adviser: Herman Z. Cummins
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Date
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1988
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Condensed Matter
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Abstract
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Morphological instability in the early stage of solidification in succinonitrile has been studied with high-resolution video microscopy. Quantitative analysis of the Fourier spectrum of the evolving crystal-melt interface has demonstrated the crucial role of noise and indicates significant disagreement with predictions of the Mullins-Sekerka theory. In the dendritic stage of solidification, the dendrite tip and radius were measured and the stability parameter of Langer, {dollar}\sigma{dollar}*, was deduced to be 0.032 compared to a value of 0.024 predicted by the microscopic solvability theory of dendritic growth.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.