Iranian Journal of Materials Science and Engineering
Iran University of Science & Technology
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Volume 8, Issue 3 (september 2011 2011)
IJMSE 2011, 8(3): 8-16 |
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S. Ghafurian, S. H. Seyedein, M. R. Aboutalebi, M. Reza Afshar. NUMERICAL MODELING OF THE COMBUSTION SYNTHESIS OF TiAl/Al2O3 COMPOSITE VIAMICROWAVE HEATING. IJMSE 2011; 8 (3) :8-16
URL: http://ijmse.iust.ac.ir/article-1-377-en.html
URL: http://ijmse.iust.ac.ir/article-1-377-en.html
Abstract: (37940 Views)
Abstract: Microwave processing is one of the novel methods for combustion synthesis of intermetallic compounds and
composites. This method brings about a lot of opportunities for processing of uniquely characterized materials. In this
study, the combustion synthesis of TiAl/Al2O3 composite via microwave heating has been investigated by the
development of a heat transfer model including a microwave heating source term. The model was tested and verified
by experiments available in the literature. Parametric studies were carried out by the model to evaluate the effects of
such parameters as input power, sample aspect ratio, and porosity on the rate of process. The results showed that
higher input powers and sample volumes, as well as the use of bigger susceptors made the reaction enhanced. It was
also shown that a decrease in the porosity and aspect ratio of sample leads to the enhancement of the process.
composites. This method brings about a lot of opportunities for processing of uniquely characterized materials. In this
study, the combustion synthesis of TiAl/Al2O3 composite via microwave heating has been investigated by the
development of a heat transfer model including a microwave heating source term. The model was tested and verified
by experiments available in the literature. Parametric studies were carried out by the model to evaluate the effects of
such parameters as input power, sample aspect ratio, and porosity on the rate of process. The results showed that
higher input powers and sample volumes, as well as the use of bigger susceptors made the reaction enhanced. It was
also shown that a decrease in the porosity and aspect ratio of sample leads to the enhancement of the process.
Keywords: Combustion Synthesis, Microwave Processing, Aluminum-Titanium Intermetallic Compounds, TiAl/Al2O3 Composite, Numerical Modeling.
Type of Study: Research Paper |
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