Non-Isothermal Kinetic Analysis of Oxidation of Mg-0. 15Al Alloy Powder

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Shafi Hosseini Mehran; HASANI SAEED

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Journal: METALLURGICAL ENGINEERING Year:2020 | Volume:23 | Issue:1 (77) Page(s): 16-27

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Title

Non-Isothermal Kinetic Analysis of Oxidation of Mg-0. 15Al Alloy Powder

Author(s)

Shafi Hosseini Mehran | HASANI SAEED | Issue Writer Certificate

Keywords

Mg-0.15Al alloy powderQ1

KineticQ2

OxidationQ1

Activation energyQ1

MechanismQ3

Abstract

In the present study, Kinetic of Oxidation process in Mg-0. 15Al powders under non-isothermal condition was studied to determine the empirical Kinetic triplets (Activation energy (E), pre-exponential factor (A), and Kinetic models of reaction (f(α ))). In order to determine the Mechanism of this process, the phase and structural studies were done by using X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods, respectively. The obtained results showed that magnesium oxide (MgO) and spinel (MgAl2O4) phases were formed from the initial Mg and Al12Mg17 phases during the Oxidation process. Microstructural observation confirmed the phenomena occurring during Oxidation by the evolution of morphology of particles. Also, the isoconversional, invariant Kinetic parameters (IKP) and fitting models were used to investigate the Kinetic of this process and to determine the Kinetic parameters. The obtained results revealed that this reaction is controlled by a nucleation and growth Mechanism with the Activation energy (Eα ) in the range of 150-320 kJ/mol.

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APA: Copy

Shafi Hosseini, Mehran, & HASANI, SAEED. (2020). Non-Isothermal Kinetic Analysis of Oxidation of Mg-0. 15Al Alloy Powder. METALLURGICAL ENGINEERING, 23(1 (77) ), 16-27. SID. https://sid.ir/paper/391392/en

Vancouver: Copy

Shafi Hosseini Mehran, HASANI SAEED. Non-Isothermal Kinetic Analysis of Oxidation of Mg-0. 15Al Alloy Powder. METALLURGICAL ENGINEERING[Internet]. 2020;23(1 (77) ):16-27. Available from: https://sid.ir/paper/391392/en

IEEE: Copy

Mehran Shafi Hosseini, and SAEED HASANI, “Non-Isothermal Kinetic Analysis of Oxidation of Mg-0. 15Al Alloy Powder,” METALLURGICAL ENGINEERING, vol. 23, no. 1 (77) , pp. 16–27, 2020, [Online]. Available: https://sid.ir/paper/391392/en

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