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Iron – Phosphate Glass (IPG) Waste Forms Produced using Induction Melter with Cold Crucible

Published online by Cambridge University Press:  01 February 2011

A.S Aloy ,
R. A. Soshnikov ,
A. V. Trofimenko ,
D. Gombert ,
D. Day  and
C. W. Kim
A.S Aloy
Affiliation:
RPA «V.G. Khlopin Radium Institute», 2–nd Murinsky Ave., 28, 194021, St. Petersburg, Russian Federation, E-mail: aloy@atom.nw.ru
R. A. Soshnikov
Affiliation:
RPA «V.G. Khlopin Radium Institute», 2–nd Murinsky Ave., 28, 194021, St. Petersburg, Russian Federation, E-mail: aloy@atom.nw.ru
A. V. Trofimenko
Affiliation:
RPA «V.G. Khlopin Radium Institute», 2–nd Murinsky Ave., 28, 194021, St. Petersburg, Russian Federation, E-mail: aloy@atom.nw.ru
D. Gombert
Affiliation:
Idaho National Engineering and Environmental Laboratory, Bechtel, BWXT Idaho, LLC, P. O. Box 1625, Idaho Falls, ID 83415, E-mail: dg3@inel.gov
D. Day
Affiliation:
Graduate Center for Materials Research, University of Missouri-Rolla, MO 65409, E-mail: day@umr.edu
C. W. Kim
Affiliation:
Graduate Center for Materials Research, University of Missouri-Rolla, MO 65409, E-mail: day@umr.edu
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Abstract

A simulated sodium bearing waste (SBW), which represented a type of high sodium and sulfate waste, was successfully vitrified in iron phosphate glasses (IPG), at a maximum waste loading of 40 wt%, using a cold crucible induction melter (CCIM). Scanning electron microscopy (SEM) and X-ray diffraction (XRD) showed that all of the IPG waste forms did not contain sulfate salt segregation or crystalline phases. The calculated composition and the average analytical composition obtained by Electron Probe Microanalysis (EPMA) were in good agreement. The major elements were uniformly distributed throughout the samples. The chemical durability of the IPG waste forms containing 40wt% SBW was evaluated by the product consistency test (PCT) and met current DOE requirements. IPG waste forms were melted at a relatively low temperature and for short times compared to borosilicate glasses. These advantages, combined with those of a significantly higher waste loading and the feasibility for CCIM melting, offer a considerable savings in time, energy, and cost for vitrifying this high sodium and sulfate waste.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 187
Copyright
Copyright © Materials Research Society 2004

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References

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