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Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography
Published on: January 25, 2019
Structure and Properties of ZrO₂⁻20%Al₂O₃ Ceramic Composites Obtained Using Additive Technologies
Vladimir Promakhov1,2, Alexander Zhukov3,4, Yana Dubkova5
1National Research Tomsk State University, 36 Lenin Ave., 634050 Tomsk, Russia. vvpromakhov@mail.ru.
Abstract:
This investigation focused on obtaining samples from ceramic composite materials, based on the ZrO₂⁻20%Al₂O₃ system, using the additive layer-by-layer fusion technology for thermoplastic systems. The structure and phase composition of the initial powders were studied, experimental samples were produced, and the structure and properties of the experimental samples that were obtained using additive technologies were analysed. The measured static bending strength of the samples was 450 ± 70 MPa, microhardness was 14 GPa, and the elasticity modulus was 280 ± 25 GPa. The strength of these samples are slightly inferior to that of similar materials, obtained using Ceramic Injection Molding technology because our samples were characterised by the residual porosity of about 15%.
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