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Leachability of Zircon as a Function of Alpha Dose

Published online by Cambridge University Press:  15 February 2011

Rodney C. Ewing ,
Richard F. Haaker  and
Werner Lutze
Rodney C. Ewing
Affiliation:
Department of Geology, University of New Mexico, Albuquerque, NM 87131USA
Richard F. Haaker
Affiliation:
Department of Geology, University of New Mexico, Albuquerque, NM 87131USA
Werner Lutze
Affiliation:
Hahn-Meitner Institute, Glienicker Strasse 100, 1000 Berlin 39, Federal Republic of Germany
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Abstract

The variation in the leachability of naturally occurring zircons (ZrSiO4) as a function of total alpha dose has been measured at 87°C. For calculated doses in the range of 1016 to 1018 alphas/gm there is an increase of one order of magnitude in the weight percent of zircon that is dissolved and an increase in the leach rate of the zircon 2.9 × 10−8 to 2.3 × 10×7 gm/cm2 day. Totally metamict specimens (dose ≥ 1019 alphas/gm) have leach rates as high as 1.8 × 10−6 gm/cm2 day.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 11: Symposium – Scientific Basis for Nuclear Waste Management V , 1981 , 389
Copyright
Copyright © Materials Research Society 1982

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