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Effect of temperature and composition of palm oil fuel ash on compressive strength of porcelain

Noh, Mohamad Zaky and Jamo, Hassan Usman and Ahmad, Zainal Arifin (2014) Effect of temperature and composition of palm oil fuel ash on compressive strength of porcelain. Applied Mechanics and Materials, 660. pp. 173-177. ISSN 1662-7482

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Abstract

The treated palm oil fuel ash (POFA) is used as a substitute material in producing an improved porcelain ceramics. Most of the POFA is posed as waste in landfills, causing environmental and other problems. The POFA is grounded in a ball mill until the particle size is reduced to about 50 μm. Then it is heated at a temperature of 600 ºC for 1.5 h in an electric furnace. About 5 wt% to 25 wt% of POFA is used to substitute quartz in porcelain composition. The mixed powder is then pressed into pellets at pressure of 91 MPa. All the pellets are sintered at a temperature of 1000 ºC, 1100 ºC, 1200 ºC and 1280 ºC for 2.0 h soaking times. It is found that the highest compressive strength, 46 MPa is obtained at 15 wt% of POFA and sintered at 1100 ºC. The improvement in the properties could be attributed to the changes in the microstructural features as a result of an increase in mullite and cristobalite simultaneously.

Item Type: Article
Uncontrolled Keywords: bulk density; compressive strength; composition; quartz; POFA
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Applied Science and Technology > Department of Science and Mathematics
Depositing User: Normajihan Abd. Rahman
Date Deposited: 09 Apr 2015 04:42
Last Modified: 09 Apr 2015 04:42
URI: http://eprints.uthm.edu.my/id/eprint/6391
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