Constraint analysis of radiation-induced amorphizability of zirconate- and titanate-based nuclear wasteforms
Name
62621308-MIT.pdf
Size
1.22 MB
Format
Adobe PDF
Checksum (MD5)
a69722f29e123e131d720512ba0f2c84
Author(s)
Frame, Gabrielle Lynn.
Advisor(s)
Linn W. Hobbs.
Date Issued
2005
Publisher
Massachusetts Institute of Technology
Abstract
Pyrochlores have long been a target of researchers looking for ceramic materials that remain stable under high doses of radiation. However, its constituent atoms have a drastic effect on how stable the structure is. The focus of this paper is to explain how titanate pyrochlores are on average an order of magnitude less structurally stable than zirconate pyrochlores. This paper explores the effect of the 48f oxygen position parameter on the structural stability of pyrochlore under heavy ion irradiation. Pyrochlores with intermediate position parameters for oxygen in the 48f location are predicted to be most stable.
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2005
"June 2005."
Includes bibliographical references (leaves 27-28).
Subjects
Materials Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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