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On the Phenomenon of Selenium Vitrification
Author(s) -
Dzhalilov S. U.,
Rzaev K. I.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670200123
Subject(s) - selenium , vitrification , drop (telecommunication) , chemistry , atmospheric temperature range , thermodynamics , analytical chemistry (journal) , materials science , mineralogy , chromatography , organic chemistry , medicine , telecommunications , physics , computer science , andrology
The temperature range for the vitrification of selenium (18 to 36 °C) is determined from volumetric measurements. This is correlated with that obtained from data on the temperature dependence of the viscosity (the function a T ), the specific heat, and the velocity of propagation of ultrasonic waves in selenium. It is shown for the first time that the vitrification temperature T g of selenium depends on the experimental time base. A drop in the cooling rate of two orders of magnitude (from 0.5 to 0.005 deg/min) cause the T g value to be decreased by 9 °C. Increasing the concentration of Te in selenium lowers the vitrification temperature of the SeTe co‐polymer according to a linear relation. The vitrification temperature of the specimen increases linearly with the concentration of Sb in selenium. This is explained as being due to the binding action of Sb, which consists of the formation of chemical cross‐links between the selenium molecules.