3D Printing of Calcia-Based Ceramic Core Composites

Abstract:

Three-dimensional printing has been used as a rapid freeform fabrication process to fabricate a wider range of green ceramic components with complex structures difficult to obtain using traditional ceramic fabrication process. In this study, calcia-based ceramic core composites were fabricated by three dimensional printing and sintering operation. The green bodies were printed using a CaO/TiO₂ powder mixture as a precursor material and ethylene glycol as a binder. They were sintered at 1400-1500 °C for 2 h. The phases and microstructures of these samples were characterized by X-ray diffraction and scanning electron microscopy. The effect of TiO₂ content and the sintering temperature on the density, hydration resistance and bending strength of the sintered bodies was investigated. It was found that increment of TiO₂ content and sintering temperature would result in an increase of density of the sintered bodies and then increase of hydration resistance and bending strength.

• Periodical: Advances in Science and Technology (Volume 88)
• Pages: 65-69
• DOI: https://doi.org/10.4028/www.scientific.net/AST.88.65
• Online since: October 2014
• Authors: Huo Ping Zhao, Chun Sheng Ye*, Zi Tian Fan
• Keywords: 3D-Printing, Calcia, Ceramic Core, Hydration Resistance

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