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    Article

    Synthesis of Dysprosium Oxychloride (DyOCl)

    Dysprosium oxychloride, DyOCl, was synthesized using a simple hydrolysis method with DyCl3·6H2O. X-ray powder diffraction (XRD) data was used to determine the crystal structure. The DyOCl compound is isostructura...

    Saehwa Chong, Brian J. Riley, José Marcial in Journal of Chemical Crystallography (2022)

  2. Article

    Open Access

    Applying laboratory methods for durability assessment of vitrified material to archaeological samples

    Laboratory testing used to assess the long-term chemical durability of nuclear waste forms may not be applicable to disposal because the accelerated conditions may not represent disposal conditions. To address...

    Lorena Nava-Farias, James J. Neeway, Michael J. Schweiger in npj Materials Degradation (2021)

  3. Article

    Open Access

    Reproduction of melting behavior for vitrified hillforts based on amphibolite, granite, and basalt lithologies

    European Bronze and Iron Age vitrified hillforts have been known since the 1700s, but archaeological interpretations regarding their function and use are still debated. We carried out a series of experiments t...

    John S. McCloy, José Marcial, Jack S. Clarke, Mostafa Ahmadzadeh in Scientific Reports (2021)

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    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)

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    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)

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    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)

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    Chapter

    Thermal Analysis of Waste Glass Batches: Effect of Batch Makeup on Gas-Evolving Reactions

    Batches made with a variety of precursors were subjected to thermogravimetric analysis. The baseline modifications included an all-nitrate batch with sucrose addition, an all-carbonate batch, and batches with ...

    David A. Pierce, Pavel Hrma, José Marcial in Thermal analysis of Micro, Nano- and Non-C… (2013)