Coal Ash Characteristic from Bukit Asam as Raw Material for Ceramics Production
Abstract
This study was carried out to characterize coal ash obtained from Bukit Asam, Tarahan Lampung, after the samples were sintered at various temperatures ranging from 900C - 1300C. The characteristics of the investigated samples included density, porosity, hardness, structure and microstructure. The results indicated that porosity decreased with increasing sintering temperature, while density and hardness increased with increasing temperature. The x-ray diffraction (XRD) study revealed that the main crystalline phase was silicon dioxide (SiO2), with the minor constituents of CaSiO2, MgSiO3, FeSiO4 and Ca12Al14O33. SEM investigations clearly demonstrated the presence of a fine crystallised phase dispersed in the microstructure.
Published
2008-07-04
How to Cite
KARO-KARO, Pulung; SEMBIRING, Simon.
Coal Ash Characteristic from Bukit Asam as Raw Material for Ceramics Production.
Jurnal ILMU DASAR, [S.l.], v. 9, n. 2, p. 127-134, july 2008.
ISSN 2442-5613.
Available at: <https://jurnal.unej.ac.id/index.php/JID/article/view/157>. Date accessed: 01 sep. 2024.
Issue
Section
General
Keywords
Coal ash; sintering; microstructure; XRD