Kinetics and Pathways for Crystallization of Amorphous Mullite and YAG
Johnson, Bradley Richard
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https://hdl.handle.net/2142/82727
Description
Title
Kinetics and Pathways for Crystallization of Amorphous Mullite and YAG
Author(s)
Johnson, Bradley Richard
Issue Date
2001
Doctoral Committee Chair(s)
Kriven, Waltraud M.
Department of Study
Materials Science and Engineering
Discipline
Materials Science and Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Materials Science
Language
eng
Abstract
Pseudotetragonal mullite gradually converted to equilibrium, orthorhombic, 3:2 mullite between 1000--1400°C. This was characterized by assimilation of the embedded, silica-rich inclusions and the elimination of internal strain. Additionally, recrystallization of numerous, small, strain- and inclusion-free, 3:2 mullite grains was observed to occur as the process proceeded to completion.
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