Fabrication and Microstructure of Clay-Based Geopolymer Ceramic Using Powder Metallurgy Method

Nur Ain Jaya; Mohd Mustafa Al Bakri Abdullah; Che Mohd Ruzaidi Ghazali; Mohammed Binhussain; Hussin Kamarudin; Romisuhani Ahmad; Mien Van Tran

doi:10.4028/www.scientific.net/AMM.754-755.145

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 754-755Fabrication and Microstructure of Clay-Based...

Fabrication and Microstructure of Clay-Based Geopolymer Ceramic Using Powder Metallurgy Method

Abstract:

Geopolymers can be transforms into ceramics upon sintering. This paper reports the effect of temperature on the mechanical properties and microstructure of Na based kaolin geopolymer ceramic. The Na₂O.Al₂O₃.4SiO₂ was fabricated through powder metallurgy method. The geopolymers samples were exposed to temperature from 900 °C up to 1200 °C. The relative density, total porosity and flexural strength of sintered sample ranged approximately 84%-95%, 5.04%-15.73% and 20-70 MPa respectively. SEM analysis on as-sintered sample showed glassy phase while polished sample showed the pore structure and distribution. XRD results showed that nepheline appeared in all heated samples. Samples heated to 1200 °C achieved highest flexural strength and toughness of 70MPa due to the optimum density.

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Applied Mechanics and Materials (Volumes 754-755)

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145-151

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.754-755.145

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Online since:

April 2015

Authors:

Nur Ain Jaya*, Mohd Mustafa Al Bakri Abdullah, Che Mohd Ruzaidi Ghazali, Mohammed Binhussain, Hussin Kamarudin, Romisuhani Ahmad, Mien Van Tran

Keywords:

Ceramic, Geopolymer, Microstructure, Powder metallurgy, Sintering

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