Sembiring, Simon and Simanjuntak, Wasinton and Situmeang, Rudy T.M STRUCTURE AND MICROSTRUCTURE PROPERTIES OF А REFRACTORY CORDIERITE PREPARED FROM AMORPHOUS RICE HUSK SILICA RESULTING FROM PERICLACE INTRODUCTION. Journal of Chemical Technology and Metallurgy, 54, 4, 2019, 721-726.

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Abstract

ABSTRACT А refractory cordierite ceramic prepared from amorphous rice husk silica is modified by the addition of 5 wt. % to 20 wt. % of periclase followed by a sintering treatment at a temperature of 1230 oC. The phases, the structural changes and the microstructure characteristics of the samples are investigated by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The results obtained indicate the significant effect of the periclace addition on the phase decomposition of cordierite into spinel and forsterite. The addition of periclace is found to increase the presence of forsterite and decrease that of spinel. The formation of spinel and forsterite is connected with electrical resistivity and porosity decrease but density increase. Keywords: cordierite, periclace, silica, rice husk, structure.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Fisika
Depositing User: SIMON SEMB
Date Deposited: 28 May 2019 05:47
Last Modified: 28 May 2019 05:47
URI: http://repository.lppm.unila.ac.id/id/eprint/13319

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