The Bending Strength of the Porcelain with the Substitution of Quartz by Palm Oil Fuel Ash

Abstract:

In this study the use of a treated palm oil fuel ash (POFA) as a substitute material in producing an improved porcelain ceramic has been presented. The POFA was grounded in a ball mill until the median particle size was reduced to about 50 μm. The POFA was heated at a temperature of 600 oC for 1.5 h in an electric furnace. It was used to substitute quartz in porcelain body from 0 wt% to 25 wt%. The mixed powder was pressed into pellets at pressure of 31 MPa, 61 MPa, 91 MPa and 121 MPa. All the pellets were sintered at a temperature of 1100 oC for 2 h soaking time. It was found out among other things that the bending strength of the samples increases with increase in substitution and also with the increase in mould presure. With a value of 45 MPa the bending strength of the samples containing 15 wt% sintered at a temperature of 1100 oC were higher than the standard porcelain. This could be attributed to compaction and sharp microstructural changes.

• Periodical: Materials Science Forum (Volume 888)
• Pages: 112-116
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.888.112
• Online since: March 2017
• Authors: Mohamad Zaky Noh, Uman Hassan, Zainal Arifin Ahmad*
• Keywords: Bending Strength, Bulk Density, Pofa, Porosity

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