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Wettability of Al2O3, MgO, and TiB2 Inclusions with Liquid Silicon

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Abstract

An experimental study was conducted to characterize the interaction between liquid silicon and refractory inclusions that are often present in silicon as solid inclusions. The investigation was carried out using the sessile drop technique. Contact angle measurements were performed for Al2O3, MgO, and TiB2 substrates, as a function of wetting time at 1420 °C, and as a function of temperature from 1420 °C to 1520 °C for each system. The interface between silicon and ceramic was also analyzed using SEM-EDS to investigate the nature of the interactions between the two phases. Such data is critical for evaluating the removability of ceramic impurities from crude silicon.

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Authors and Affiliations

  1. Metals Department at Tenova, Toronto, Canada

    Harish Iyer

  2. University of British Columbia, 2329 West Mall, Vancouver, BC, V6T 1Z4, Canada

    Leili Tafaghodi Khajavi

  3. Business Analytics at Royal Bank of Canada, Toronto, Canada

    Damian Durlik

  4. University of Toronto, 27 King’s College Cir, Toronto, ON, M5S, Canada

    Karim Danaei & Mansoor Barati

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  1. Harish Iyer
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  2. Leili Tafaghodi Khajavi
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  3. Damian Durlik
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  4. Karim Danaei
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  5. Mansoor Barati
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Correspondence to Leili Tafaghodi Khajavi.

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Iyer, H., Tafaghodi Khajavi, L., Durlik, D. et al. Wettability of Al2O3, MgO, and TiB2 Inclusions with Liquid Silicon. Silicon 10, 2219–2226 (2018). https://doi.org/10.1007/s12633-017-9753-4

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  • DOI: https://doi.org/10.1007/s12633-017-9753-4

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