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AN EXPERIMENTAL METHOD OF MEASURING THE CRYSTALLIZATION FRONT TEMPERATURE

JIN WEI-QING HIROSHI KOMATSU

AN EXPERIMENTAL METHOD OF MEASURING THE CRYSTALLIZATION FRONT TEMPERATURE

JIN WEI-QING, HIROSHI KOMATSU
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  • Received Date:  21 July 1984
  • Published Online:  31 March 2005

AN EXPERIMENTAL METHOD OF MEASURING THE CRYSTALLIZATION FRONT TEMPERATURE

  • 1. (1)日本国东北大学金属材料研究所; (2)中国科学院上海硅酸盐研究所

Abstract: In studying the kinetics of crystal growth from the melt, it is extremely important to measure the crystallization front temperature. In order to carry out in situ observations of growth around room-temperature, a thermally regulating stage on polarized-light microscope was constructed. The temperature at the crystallization front of salol was measured by a c.c, thermocouple with diameter 25 μm. The results of measurement showed that using present apparatus, the rate of latent heat removal was constant in a supercooling stationary melt in the range of △T<3.0℃. The increament of temperature at the front was about 1% of the supercooling in the melt bulk.The thermally regulating stage we designed can be useful in the study of the kina-tics of crystal growth.

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