Abstract
Ceramic samples were fabricated from alumina using traditional and additive technologies. Slipcasting technique was used to prepare sample as a traditional way, from pink alumina ceramic slurry with further drying a high temperature treatment of dried preformed ceramics. For preparation of second sample by additive route, stereolythography or SLA 3D-printing was used. This sample firstly formed a so called green body ceramic from photopolymerazed slurry, that forms an organo-inorganic composite with alumina as a filler. Preformed green body ceramic then undergoes a several stages of heat treatment: first is debinding process, at low temperature to rid of polymer binder and second stage is annealing at higher temperatures to fuse alumina particles together and get desired strength and porosity level. Samples were studied using GE Vtomex c 450 X-ray tomography device. It allowed to compare accuracy of geometry, surface roughness and porosity of samples. It is shown that additive technology due to high accuracy of fabrication is a perspective way of precision fabrication of ceramic parts with high quality.
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