Morphological instability and pattern selection in solidifying succinonitrile.

Item

Title
Morphological instability and pattern selection in solidifying succinonitrile.
Identifier
AAI8915583
identifier
8915583
Creator
Chou, Henry.
Contributor
Adviser: Herman Z. Cummins
Date
1988
Language
English
Publisher
City University of New York.
Subject
Physics, Condensed Matter
Abstract
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.
Type
dissertation
Source
PQT Legacy CUNY.xlsx
degree
Ph.D.
Item sets
CUNY Legacy ETDs