Constraint analysis of radiation-induced amorphizability of zirconate- and titanate-based nuclear wasteforms

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.

Name thesis:degree_name

Bachelor

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Materials Science and Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2005

Author dc:creator

• Frame, Gabrielle Lynn.

Advisor dc:contributor.advisor

• Linn W. Hobbs.

• Materials Science and Engineering.

Statement dc:rights

• MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/148443

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/148443