Prediction Model and Influence of Fe₂O₃ on the Mechanical Properties of Porcelain with POFA as Quartz Replacement

Abstract:

Palm oil fuel ash (POFA) is solid waste from palm oil industries discarded after burning of shell, fiber, kernel and empty fruit bunches to heat boiler and generate electricity. A standard porcelain consisting of clay, feldspar and quartz is produced by sintering at temperature between 1300 °C to 1400 °C for toughness and translucency. This research developed a prediction model for optimum physical and mechanical properties of porcelain by addition of Fe₂O₃ at 5 wt.%. Quartz was replaced with POFA powder at 15 wt.% and Fe₂O₃ was also added at 5 wt.% of POFA mixed with others porcelain composition. Then the powder was dry pressed into pellet at 91 MPa and the samples were sintered at 1150 °C. The bulk density, compressive strength and Vickers microhardness were found to increase by addition of Fe₂O₃ at 5 wt.%. Prediction model was developed and from the predicted values it is revealed that, the model is efficient and good for the purpose of this research.

• Periodical: Materials Science Forum (Volume 1010)
• Pages: 244-249
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1010.244
• Online since: September 2020
• Authors: Sani Garba Durumin-Iya, Mohamad Zaky Noh*, Norazreen Sharip, Siti Noraiza Ab Razak, Mohd Warikh Abdul Rashid, Julie Juliewatty Mohamed, Mohd Al Amin Muhamad Nor
• Keywords: Fe₂O₃, Palm Oil Fuel Ash (POFA), Polynomial Analysis, Porcelain, Regression

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