Effect of temperature of liquid sulphur on kinetics of transformation of chains in its amorphous modification |
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Authors: | W Swiatkowski |
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Institution: | (1) Faculty of Process and Environmental Engineering, Technical University of ód, Wólczanska 175, 90-924 ód, Poland |
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Abstract: | The rate of transformation of the chains in amorphous sulphur was examined by calorimetry at 298 K. The amorphous samples were remelted at the temperatureT
f in the range from 458 to 573 K. Increase ofT
f decreased the transformation rate. The results satisfy the equationX=1-exp-(kt)z] (X=transformation degree,t=time, andk andz=constants). A one-stage transformation was observed for samples remelted atT
f473 K. ForT
f 523 K, transformation in two stages was observed.The effects ofT
f on the kinetics of nucleation and the growth of the nuclei are discussed. |
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Keywords: | crystallization in solid state |
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