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Influence of the Printing Parameters on the Quality of Alumina Ceramics Shaped by UV-LCM Technology
P. Ożóg1,2, G. Blugan1, D. Kata2, T. Graule1
1 Laboratory for High Performance Ceramics, Empa, Überlandstrasse 129, 8600 Dübendorf, Switzerland
2 Faculty of Materials Science and Ceramics, University of Science and Technology, al. Adama Mickiewicza 30, 30 – 059 Cracow, Poland
received February 22, 2019, received in revised form July 6, 2019, accepted July 26, 2019
Vol. 10, No. 2, Pages 1-10 DOI: 10.4416/JCST2019-00023
Abstract
The commercial alumina dispersion LithaLox HP500 from Lithoz (Austria) was 3D-shaped on a customized LCM device equipped with a light engine emitting at a wavelength of 365 nm and pixel size of 20 μm. The precision of the green part fabrication was measured using gear geometry and different exposure energies. The effect of the layer thickness on the shaping of the green bodies and the sintered ceramics was also evaluated. Additionally, the strength of parts fabricated using different layer thickness was tested in ball-on-three-balls testing and their fracture surfaces were analysed.
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Keywords
Alumina, LCM, 3D printing, UV-curing, photopolymerisation
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