Crystal Growth Studies in a Lime-Aluminosilicate Glass System

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  • KIM Cheon-Woo
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • CHOI Jong Rak
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • JI Pyung Kook
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • PARK Jong-Kil
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • SHIN Sang-Woon
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • HA Jong-Hyun
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • SONG Myung-Jae
    Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co., Ltd.
  • RYU Bong Ki
    Department of Materials Science and Engineering, Pusan National University
  • UTSUNO Futoshi
    IIS, University of Tokyo
  • YASUI Itaru
    IIS, University of Tokyo

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  • 石灰-アルミノシリケート組成ガラスの結晶成長に関する研究

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Abstract

The crystallization of wollastonite-type, (Ca, Mg, Fe)SiO3, in the system of Al2O3-CaO-Fe2O3-K2O-MgO-MnO2-Na2O-P2O5-SiO2-TiO2 has been studied over the temperature range of 1148-1348 K. A linear growth rate of surface crystallization of the wollastonite-type has been observed for the glass system. The crystal growth rate was measured as a function of temperature in a platinum crucible contact regime where heterogeneous crystal has been found to occur. The beginning of the crystallized-layer growth was preceded by a considerable induction period. The activation energy barrier for crystallization of the wollastonite-type at large undercoolings was determined to be 222.20 kJ•mol-1.<br>

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