AN EXPERIMENTAL METHOD OF MEASURING THE CRYSTALLIZATION FRONT TEMPERATURE | Zendy

Jin Wei-Qing | Zendy; HIROSHI KOMATSU | Zendy

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AN EXPERIMENTAL METHOD OF MEASURING THE CRYSTALLIZATION FRONT TEMPERATURE

Author(s) -

Jin Wei-Qing,

HIROSHI KOMATSU

Publication year - 1985

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.34.1166

Subject(s) - supercooling , crystallization , materials science , thermocouple , front (military) , crystal (programming language) , atmospheric temperature range , thermodynamics , crystal growth , microscope , optics , composite material , meteorology , physics , computer science , programming language

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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