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Iso-Conversional and Isokinetic Methods of Analysis of Non-Isothermal Crystallization in Ti50Cu20Ni30 Metallic Glass

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Abstract:

The crystallization kinetics of metallic glass Ti50Cu20Ni30 has been studied using Differential Scanning Calorimetry (DSC). The DSC thermograms have been analysed using the model-free isoconversional methods and model dependent isokinetic methods. The activation energy(E) for the crystallization process has been determined utilizing; (i) various linear integral isoconversional methods, namely, Ozawa-Flynn-Wall, Kissinger-Akahira-Sunose, Li Tang method (ii) linear differential isoconversional method and (iii) different isokinetic methods. In the present work, we intend to the determination of true value of E. The above methods are found to give consistent results for E.

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Periodical:

Solid State Phenomena (Volume 171)

Pages:

107-119

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.171.107

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Online since:

May 2011

Authors:

Heena Dhurandhar, T. Lilly Shanker Rao, Kirit N. Lad, Arun Pratap

Keywords:

Activation Energy, Crystallization, Isoconversional, Metallic Glass

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