Research articles
ScienceAsia 51 (2023): 1-6 |doi:
10.2306/scienceasia1513-1874.2023.086
Porous ceramics from Saudi mineral materials
N. M. Khalila,*, Yousif Algamala,b
ABSTRACT: One of the 2030 Vision goals of the Kingdom of Saudi Arabia (KSA) is industrial development through
the exploitation of local resources. Local bauxite ore and alumina extracted from aluminum workshop wastes were
used to prepare several porous ceramic bodies by adding a constant percentage of fly ash as a pore-forming agent.
Correspondence mixes of dense ceramic bodies were prepared without the addition of fly ash for comparison. Studying
the sintering (bulk density and apparent porosity), mechanical strength (cold crushing strength), electrical resistivity,
and thermal conductivity of the fired ceramic bodies indicated that the porous ceramic bodies prepared from 60 wt%
bauxite and 40 wt%aluminawiththe addition of 10 wt% flyashexhibits a good combination of sintering (bulk density;
3.70g/cm3, apparentporosity10.11%), mechanicalstrength(290kg/cm2), electricalresistivity(5.00?109 ohm.m)and
thermal conductivity (0.051 W.m?1.K?1) properties due to its outstanding assemblage of mineral compositions (mullite
cristobalite-anorthite) which enable their use as promised materials in a wide range of traditional and advanced
applications.
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| a |
Chemistry Department,The Applied College?Khulais, Jeddah 21959, University of Jeddah, K.S.A. |
| b |
Chemistry Department, Faculty of Science & Technology, Omdurman Islamic University, Sudan |
* Corresponding author, E-mail: nagy2071@yahoo.com
Received 9 May 2024, Accepted 0 0000
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