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Properties of ceramic fabricated of synthetic carbon and organoclay based on carbon particle size
Agus Edy Pramono,R. Sugeng Mulyono,R. Grenny Sudarmawan,Muhammad Zaki Nura,Haolia Rahman,Nanik Indayaningsih 한양대학교 세라믹연구소 2020 Journal of Ceramic Processing Research Vol.21 No.4
The electrical and thermal conductivity properties of ceramics fabricated from carbon powder and clay have been studied. Thisstudy was designed by varying the particle size of carbon powders of mesh 150; 200; 250; 300; 350, with a carbon-organoclayratio of 30: 70% by weight, 200 bar compacting, and sintering of 950; 1000; 1050 °C. Electrical conductivity, thermalconductivity, specific wear rate, density/porosity, and ceramic morphology have been studied. The thermal conductivity followsthe tendency of electrical conductivity, because of the effect of carbon particle size. Increased sintering temperatures tend todecrease wear resistance. The smaller the particle size of carbon powder, it tends to increase the wear rate and the density ofcarbon-ceramic experiences relatively small changes. Porosity tends to follow density, even though the size of carbon particlesgets smaller. The occurrence of porous and cracking is more due to the irregular shape of carbon and matrix particles.