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Crystal Chemical Constraints on the Formation of Actinide Pyrochlores

Published online by Cambridge University Press:  26 February 2011

Bryan C. Chakoumakos  and
Rodney C. Ewing
Bryan C. Chakoumakos
Affiliation:
University of New Mexico, Geology Department, Albuquerque, NM 87131
Rodney C. Ewing
Affiliation:
University of New Mexico, Geology Department, Albuquerque, NM 87131
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Abstract

The pyrochlore structure type, A1−2 B2 O6Y0−1 Fd3m Z=8, is a common constituent of polyphase, crystalline waste forms. Naturally occurring minerals with the same structure often occur in the radiation damaged, electron-diffraction amorphous, “metamict” state; and therefore, a principal concern with phases of this structure type is the effect of alpha-recoil damage associated with the presence of actinides. In this paper we outline crystal chemical constraints on the formation of novel actinide pyrochlores.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 44: Symposium N – Scientific Basis for Nuclear Waste Management VIII , 1984 , 641
Copyright
Copyright © Materials Research Society 1985

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