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Materials Research Innovations Volume 23, 2019 - Issue 3
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Research Paper

Investigations of crystallization kinetics of Se82-xTe18Sbx (x =0, 4, 8, 12) glassy alloys by iso-conversional approach

Vandita RaoAmorphous Semiconductor Research Lab, Department of Applied Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India
,
N. MehtaDepartment of Physics, Institute of Science, Banaras Hindu University, Varanasi, India
&
D. K. DwivediAmorphous Semiconductor Research Lab, Department of Applied Science, Madan Mohan Malaviya University of Technology, Gorakhpur, IndiaCorrespondence[email protected]
[email protected]
Pages 141-148 | Received 20 Dec 2016, Accepted 19 Mar 2017, Published online: 10 Nov 2017
 
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Abstract

At different heating rates, the crystallization temperature (T c ) are obtained from the non-isothermal differential scanning calorimetry (DSC) measurements of bulk Se82–x Te18Sb x (x = 0, 4, 8 and 12) chalcogenide glasses prepared by melt quench technique. It was observed that the crystallization temperatures increase with increasing heating rates and also by increasing Sb concentration in Se–Te system. The activation energy of crystallization (E c ), the Avrami exponent (n) and rate of crystallization (K p ) have been determined from the different models. Glassy nature of as prepared samples has been confirmed using DSC techniques.

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