Abstract ▼ AI-Helper

Photo-curable ceramic slurries used in digital light processing (DLP) for ceramic 3D printing have been mainly composed of photo-curable acrylic resins, ceramic particles and photo-initiator. During by DLP 3D printing process, there is a problem of peeling between layers in ceramic green body due to...

Photo-curable ceramic slurries used in digital light processing (DLP) for ceramic 3D printing have been mainly composed of photo-curable acrylic resins, ceramic particles and photo-initiator. During by DLP 3D printing process, there is a problem of peeling between layers in ceramic green body due to a lack of adhesion between layers formed with photo-cured acrylic resins. In this study, we prepared epoxide based ceramic slurry by using fused silica particles, dispersants, photo/thermal initiators, and acrylate/epoxide monomers for DLP 3D printing. After that, through light irradiation and subsequent thermal polymerization, ceramic green bodies was fabricated. The ceramic green bodies showed an excellent interlayer adhesive force due to a hydroxyl group generated in a thermal polymerization of epoxide in a monomer. In addition, the fracture strength of the green body including epoxide was higher than that of acryl based green body. The sintered body obtained through subsequent sintering had no interlayer exfoliation.

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