Document Details

Document Type : Article In Journal 
Document Title :
Kinetics of non-isothermal crystallization of ternary Se80Te20-xZnx glasses
Kinetics of non-isothermal crystallization of ternary Se80Te20-xZnx glasses
 
Subject : Physics 
Document Language : English 
Abstract : The crystallization kinetics of Se80Te20-xZnx with x = 0.5, 1.0, 1.5, 2.0 and 2.5 chalcogenide glasses were investigated using non-isothermal crystallization approach. The glass transition temperature (Tg) and crystallization temperature (Tc) of these glasses were determined using the differential scanning calorimeter at different heating rates. The dependence of Tg and Tc on the heating rate (β) has been used for the determination of the activation energy of crystallization (Ec), the activation energy of structural relaxation (Et), crystallization enthalpy (ΔHc) and the Avrami exponent (n). It was found that the enthalpy released is minimum at 2.5% of Zn, hence, the glass with 2.5% of Zn is most stable in the Se80Te20-xZnx system. The crystallization kinetics for the glasses was studied by using the modified Kissinger and Ozawa equations. 
ISSN : 0925-8388 
Journal Name : Journal of Alloys and Compounds 
Volume : 497 
Issue Number : 1 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Tuesday, October 11, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Anis AhmadAhmad, Anis ResearcherDoctorate 
شمشاد أحمد خانKhan, Shamshad AhmedResearcherDoctorateshamshad_phys@yahoo.com
أحمد عبدالله الغامديAl-Ghamdi, A AResearcherDoctorateAGAMDI@kau.edu.sa
فيصل عبدالعزيز العقلAl-Agel, Faisal AResearcherDoctoratefagel@kau.edu.sa
Kirti SinhaSinha, Kirti ResearcherDoctorate 
Mohd ZulfequarZulfequar, Mohd ResearcherDoctorate 
M HusainHusain, M ResearcherDoctorate 

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