Manufacturing Process and Characterization of Porous Ceramics with AAS, XRD and SEM-EDX
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Research has been conducted on the manufacturing process and characterization of porous ceramics with raw materials like alumina, kaolin, fly ash and activated carbon. The composition comparison of alumina raw materials is kaolin (1:4) with fly ash and activated carbon (50:35:15) percent from weight. Alumina, kaolin, fly ash and activated carbon materials have a diameter of 100 mesh each, then added with water, mixed and pressurized homogeneously with a pressure of 5 tons, conditioned for 48 hours and burned at 1100oC for 2 hours. The characteristics of porous ceramics on the composition of 15% activated carbon have the highest porosity of 23.54%, with phase Corundum (Al2O3) through the standard JCPDS No. 46-1212 lattice parameters, a = 4.758 Å, c = 12.99 Å, the crystal structure was trigonal and Mullite phase (3Al2O3.2SiO2) through standard JCPDS No. 15-776, lattice parameters a = 7.5430 Å, b = 7.6872 Å and c = 2.8842 Å with Orthorhombic crystal structure.