High-density ceramics obtained by andesite basalt sintering

In the present study, andesite basalt originated from deposit site ?Donje Jarinje?, Serbia, was examined as a potential raw material for high-density ceramics production. The production of included dry milling, homogenization, cold isostatic pressing and sintering in air. To determine optimal processing parameters conducted at 1040, 1050, 1060, 1070 1080?C, afterwards duration varied 30 to 240min temperature 1060?C. Characterization starting sintered materials estimation particle size distribution, density, hardness fracture toughness complemented with X-ray diffraction, optical light microscopy, scanning electron microscopy energy dispersive spectroscopy analysis. Phase transformations did not occur during investigated range 1040 1080?C. obtained research results showed that 99.5% relative density highest values 6.7GPa 2.2MPa?m1/2, respectively, were achieved 1060?C 60min study confirmed can be used ceramic various industrial applications.