Thermal conductivity of borosilicate melt

Tsuyoshi Nishi, Junpei Ojima, Yoshitaka Kuroda, Hiromichi Ohta, Sohei Sukenaga, Hiroyuki Shibata, Hidenori Kawashima

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Borosilicate glass is used in mixture of high-level radioactive waste (HLW) generated by nuclear spent fuel. Thermophysical property data of borosilicate melts in molten state during processing of HLW were studied to investigate a possibility of a simpler and flexible process for immobilisation of high level wastes. Especially, these data are indispensable information to optimize the process of the temperature distribution in the glass melting furnace. In this study, the thermal effusivity of B2O3-CaO-SiO2 melt was measured using a front heating-front detection laser flash method. The thermal conductivity was evaluated by combining the measured thermal effusivity data with specific heat capacity and density. In these results, the thermal conductivity of CaO-B2O3-SiO2 melt was increased with temperature.

    Original languageEnglish
    Title of host publicationAdvances in Molten Slags, Fluxes, and Salts
    Subtitle of host publicationProceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016
    EditorsRamana G. Reddy, Pinakin Chaubal, P. Chris Pistorius, Uday Pal
    PublisherSpringer International Publishing AG
    Pages519-524
    Number of pages6
    ISBN (Print)9783319486253
    DOIs
    Publication statusPublished - 2017
    Event10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016 - Seattle, United States
    Duration: 2016 May 222016 May 25

    Publication series

    NameAdvances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016

    Conference

    Conference10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016
    CountryUnited States
    CitySeattle
    Period16/5/2216/5/25

    Keywords

    • Borosilicate melt
    • Front-heating front-detecting laser flash method
    • Thermal conductivity
    • Thermal effusivity

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Chemistry
    • Metals and Alloys

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