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- Title
CRYSTALLIZATION KINETICS OF Zn<sub>10</sub>Se<sub>90</sub> CHALCOGENIDE GLASSY ALLOYS USING NON-ISOTHERMAL METHODS.
- Authors
AL-MAGHRABI, M. A.
- Abstract
This work is an attempt to quantitatively investigate the non-isothermal crystallization kinetics of Zn10Se90 chalcogenide. The behavior of kinetics parameters suggested that it is appropriate to conduct the investigation in three different heating regimes [(1) β =3-15, (2) β =20-50, and (3) β =60-99 K min-1]. Quantitative methods based on the Friedman and Starink models were utilized to evaluate variation in activation energy as a function of reaction progress and temperature. Both models showed the same trend, with a small variation which might have been due to the approximation approach. The variation in activation energy suggested that the chalcogenide responded differently in each heatingrate regime. This behavior was observed for the results obtained from the two models. Avrami's equation and Matusita analysis were used to evaluate Avrami's exponents. The results showed good agreement, indicating the reliability of both approaches.
- Publication
Chalcogenide Letters, 2019, Vol 16, Issue 2, p63
- ISSN
1841-4834
- Publication type
Academic Journal