Correlations between reaction wave propagation and phase formations in combustion of diluted TiO2–Al–C mixture

Saw, L.H. and Rahbari, R.G. and Abd Shukor, Mohd Hamdi and Yahya, Rosiyah (2009) Correlations between reaction wave propagation and phase formations in combustion of diluted TiO2–Al–C mixture. Materials Research Innovations, 13 (3). pp. 171-175. ISSN 1432-8917

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Official URL: https://doi.org/10.1179/143307509X437536

Abstract

The influence of Al 2O 3 diluent on quasi-adiabatic combustion synthesis of (3TiO 2+4Al+3.5C+yAl 2O 3) mixture in the presence of oxygen was studied. Assuming adiabatic conditions, maximum temperature of the system for y=0, 0.5, 1.0, 1.5, 2.0, and 2.5 was calculated. Activation energy of reaction kinetics was thermoanalytically determined based on thermogravimetric analysis. Boundary between steady/unsteady wave propagations in self-sustaining (SS) mode of combustion was determined for various amounts of diluents. Existing models proposed in combustion kinetics were used to relate propagation modes of combustion wave to activation energy and conversion rate. The examined model was successfully corresponded to additional phase formations in the product.

Item Type: Article
Uncontrolled Keywords: Combustion synthesis; diluent; self-sustaining mode; activation energy
Subjects: Q Science > QD Chemistry
T Technology > TS Manufactures
Divisions: Faculty of Engineering
Faculty of Science > Dept of Chemistry
Depositing User: miss munirah saadom
Date Deposited: 05 Jul 2013 01:25
Last Modified: 01 Oct 2021 03:57
URI: http://eprints.um.edu.my/id/eprint/6670

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