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

Author:

Reynolds J. G.,Hrma P.

Abstract

ABSTRACTThe 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.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

Reference13 articles.

1. 9. Vienna J.D. , Hrma P. , and Smith D.E. (this volume).

2. 1. Mika M. , Schweiger M.J. , Vienna J.D. , and Hrma P. (this volume).

3. Partitioning of ruthenium, rhodium, and palladium between spinel and silicate melt and implications for platinum group element fractionation trends

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