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Liquidus temperature measurements for modeling oxide glass systems relevant to nuclear waste vitrification

Published online by Cambridge University Press:  01 December 2005

Jonathan B. Hanni ,
Eric Pressly ,
Jarrod V. Crum ,
Kevin B.C. Minister ,
Diana Tran ,
Pavel Hrma  and
John D. Vienna
Jonathan B. Hanni
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
Eric Pressly
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
Jarrod V. Crum
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
Kevin B.C. Minister
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
Diana Tran
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
Pavel Hrma
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
John D. Vienna*
Affiliation:
Environmental Technology Division, Pacific Northwest National Laboratory, Richland, Washington 99354
*
a)Address all correspondence to this author.e-mail: john.vienna@pnl.gov
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Abstract

Liquidus temperatures (TL) were measured, and primary phases were determined for 50 (from an initial test matrix of 76) compositions within the Al2O3–B2O3–CaO–Na2O–SiO2 glass-forming system and its constituent ternary subsystems. Strong linear correlations have been found between composition and TL for melts within the same primary phase fields. The TL and primary phase data are being used to develop and refine a modified associate species model (ASM). The impacts of Fe2O3, Li2O, NiO, ZrO2, Cr2O3, ZnO, and MnO additions on the TL of two baseline glass compositions are reported. These data are intended as benchmarks for further expansion of the ASM or other silicate melt solution models of nuclear waste glasses.

Keywords

GlassPhase equilibriaThermodynamic properties
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 12 , December 2005 , pp. 3346 - 3357
Copyright
Copyright © Materials Research Society 2005

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References

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