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The Kinetics of Spinel Crystallization from a High-Level Waste Glass

Published online by Cambridge University Press:  03 September 2012

J. G. Reynolds  and
P. Hrma
J. G. Reynolds
Affiliation:
Division of Soils, University of Idaho, Moscow, Idaho 83843, ryno9522@uidaho.edu
P. Hrma
Affiliation:
Pacific Northwest National Laboratory, Richland, Washington 99352, pr_hrma@pnl.gov
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Abstract

The kinetics of spinel crystallization from a molten high-iron simulated high-level nuclear waste glass was studied using isothermal heat treatments. Optical microscopy with image analysis was used to measure volume fraction of spinel as a function of heat treatment time and temperature. The Johnson-Mehl-Avrami equation was fitted to data to determine kinetic coefficients for spinel crystallization. The liquidus temperature and Avrami number are TL = 1337K and n = 1.5.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 65
Copyright
Copyright © Materials Research Society 1997

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References

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