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4 Result(s)

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  1. No Access

    Article

    Method Development for High Temperature In-Situ Neutron Diffraction Measurements of Glass Crystallization on Cooling from Melt

    A glass-ceramic borosilicate waste form is being considered for immobilization of waste streams of alkali, alkaline-earth, lanthanide, and transition metals generated by transuranic extraction for reprocessing...

    John McCloy, José Marcial, Brian Riley, Jörg Neuefeind, Jarrod Crum… in MRS Advances (2019)

  2. No Access

    Article

    Glass structure and crystallization in boro-alumino-silicate glasses containing rare earth and transition metal cations: a US-UK collaborative program

    Nuclear wastes generated from reprocessing of used nuclear fuel tend to contain a large fraction of rare earth (RE, e.g., Nd3+), transition (TM, e.g., Mo6+, Zr4+), alkali (A, e.g., Cs+), and alkaline earth cation...

    John S. McCloy, José Marcial, Deepak Patil, Muad Saleh, Mostafa Ahmadzadeh… in MRS Advances (2019)

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    Article

    Effect of Li, Fe, and B Addition on the Crystallization Behavior of Sodium Aluminosilicate Glasses as Analogues for Hanford High Level Waste Glasses

    Crystallization of aluminosilicates during the conversion of Hanford high-level waste (HLW) to glass is a function of the composition of the glass-forming melt. In high-sodium, highaluminum waste streams, the ...

    José Marcial, Mostafa Ahmadzadeh, John S. McCloy in MRS Advances (2017)

  4. No Access

    Article

    Nepheline Crystallization in High-Alumina High-Level Waste Glass

    The understanding of the crystallization of aluminosilicate phases in nuclear waste glasses is a major challenge for nuclear waste vitrification. Robust studies on the compositional dependence of nepheline for...

    José Marcial, John McCloy, Owen Neill in MRS Online Proceedings Library (2014)