Investigate microwave absorption on formulated SiC/ Al2O3 composite porous susceptor

Siti Zuraina Nawawi, (2017) Investigate microwave absorption on formulated SiC/ Al2O3 composite porous susceptor. [Undergraduate Final Year Project Report] (Submitted)

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Electricity is the main cost of production in the manufacturing industry. Thus, the best way is by optimum the energy consumption from the sources, use as much as it can and shorter the time for the process which consume energy. Understand this needs, susceptor usage in a microwave is the best alternative to absorb the energy sources and convert the energy in less time. However, the commercially susceptor which is SiC susceptor has low electromagnetic absorption which consume more energy and high cost to produce since it is pure Silicon Carbide and need high sintering temperature. In this studies, high electromagnetic absorption of SiC/Al2O3 composite susceptor produced which enhanced electromagnetic absorption, lower the sintering temperature that cut the cost of production so it can be use in domestic application. The studies use different compositions of Alumina and Silicon Carbide as fillers which are (10, 20, 30, 40 and 50 wt% Al2O3). The raw material, mixture and the sintered composite were characterize in term of phase characterization, microstructure, electromagnetic absorption and density and porosity to determine the best composition to fabricate the SiC/Al2O3 composite susceptor. Result shows 50 wt% of Alumina be able to reach 556°C within 12 minutes, and in term of microstructure, XRD also density and porosity, it is ideal among the five composition. This ideal ratio uses for the production of porous susceptor using 5 different pore size of sponge. The porous structure able to absorb more energy from microwave rays. The sponge replication method uses and this studies find the best pore size of sponge is 191.9523 μm. This size reach up to 591°C.

Item Type: Undergraduate Final Year Project Report
Faculty: Faculty of Earth Sciences
Depositing User: En. Shahrul Afzan Ibrahim
Date Deposited: 07 Nov 2017 09:18
Last Modified: 07 Nov 2017 09:18
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