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  1. No Access

    Article

    Non-Linearity in Glass Composition Dependence of Dissolution Rates: Effect of Solution pH

    In our previous studies on the optimization of glass compositions for high-level nuclear waste vitrification it was found that, over certain composition ranges, PCT leachate concentrations increased dramatical...

    Shi-Ben **ng, Isabelle S. Muller, Ian L. Pegg in MRS Online Proceedings Library (1993)

  2. No Access

    Article

    Optimization of Savannah River M-Area Mixed Waste for Vitrification

    Vitrification studies of actual Savannah River M-Area mixed wastes have shown that the limiting factor for high waste loading of this waste stream is its chemical durability as defined by the toxicity characte...

    Sabrina S. Fu, Hao Gan, Isabelle S. Muller, Ian L. Pegg… in MRS Online Proceedings Library (1996)

  3. No Access

    Article

    High-Temperature Melter Tests for Vitrificationof BNFL High-Level Nuclear Wastes

    Vitrification has become the international method of choice for the immobilization of highlevel nuclear wastes (HLW) from both commercial and defense fuel reprocessing activities. However, there are clear econ...

    Keith S. Matlack, Isabelle S. Muller, Hamid Hojaji… in MRS Online Proceedings Library (1999)

  4. No Access

    Article

    Formulation, Testing, and Structural Characterization of High-Zirconium High-Level Waste Glasses

    A range of compositions of high-zirconia borosilicate glasses were formulated and their structures investigated by a combination of techniques. These compositions have potential applications for high-level nuc...

    David A. McKeown, Isabelle S. Muller, Andrew C. Buechele… in MRS Online Proceedings Library (1999)

  5. No Access

    Article

    X-ray Absorption Studies of Vanadium Valence and Local Environment in Borosilicate Waste Glasses

    XANES and EXAFS data were collected and analyzed to characterize vanadium in borosilicate glasses used for immobilization of sulfur-containing nuclear wastes. Earlier studies suggested that adding vanadium to ...

    David A. McKeown, Isabelle S. Muller, Keith S. Matlack… in MRS Online Proceedings Library (2002)

  6. No Access

    Article

    X-ray Absorption Fine Structure Studies of Speciation of Technetium in Borosilicate Glasses

    A series of glass samples were prepared analogously to high level waste glass using either glass frit or glass precursors combined with a high level waste surrogate containing NaTcO4. Three different technetium s...

    Wayne W. Lukens, David K. Shuh, Isabelle S. Muller… in MRS Online Proceedings Library (2003)

  7. No Access

    Article

    Compositional Effects on the Long-Term Durability of Nuclear Waste Glasses: A Statistical Approach

    As a result of the development of a reference glass formulation for the immobilization of West-Valley nuclear waste, a large number of glass compositions have been tested under a variety of leaching conditions...

    Solange Ribet, Isabelle S. Muller, Ian L. Pegg… in MRS Online Proceedings Library (2004)

  8. No Access

    Chapter and Conference Paper

    Iron Mössbauer redox and relation to technetium retention during vitrification

    Technetium-99 is a long half-life radioactive fission product whose high volatility during waste vitrification (National Research Council, 2001; Migge, Mat Res Symp Proc 127:205–213, 1989) is a factor in the safe...

    Isabelle S. Muller, Carol Viragh, Hao Gan, Keith S. Matlack, Ian L. Pegg in ISIAME 2008 (2009)

  9. No Access

    Article

    Iron Mössbauer redox and relation to technetium retention during vitrification

    Technetium-99 is a long half-life radioactive fission product whose high volatility during waste vitrification (National Research Council, 2001; Migge, Mat Res Symp Proc 127:205–213, 1989) is a factor in the safe...

    Isabelle S. Muller, Carol Viragh, Hao Gan, Keith S. Matlack… in Hyperfine Interactions (2009)