Light Curing Molding of Barium Titanate/Calcium Silicate Piezoelectric Bioactive Composite Ceramics

doi:10.16552/j.cnki.issn1001-1625.2025.0229

Abstract

Abstract: Piezoelectric bioactive composite ceramic materials can induce mineralization of bone-like components while generating electrical signals to stimulate osteoblast proliferation and differentiation, making them ideal bone repair materials, but there are still few related light curing molding. In this study, barium titanate/calcium silicate light curing composite ceramic slurries suitable for molding by digital light processing technology were successfully prepared, and the effects of main active monomers on the rheological and curing properties of slurries, as well as the effects of type and content of dispersants on the rheological properties of slurries were systematically investigated. The results show that 4-acryloylmorpholine (ACMO) is the most suitable main active monomer, and 3% (mass fraction) wetting dispersant BYK-111 is the most suitable dispersant system. When solid content is 50% (volume fraction), composite ceramic slurries exhibit favorable shear-thinning characteristics. Barium titanate/calcium silicate porous ceramic green bodies with complex structures can be printed using the above slurry, and barium titanate/calcium silicate composite ceramics with visible porosity of about 39.33% and flexural strength of (27.18±1.75) MPa are obtained after sintering at 1 110 ℃ for 4 h.

Key words: piezoelectric ceramics, bioceramics, light curing ceramic slurry, digital light processing, rheological property, curing property

CLC Number:

TQ174

QIU Haohong, BAO Chonggao, LI Shijia, DONG Wencai, YAN Shuo. Light Curing Molding of Barium Titanate/Calcium Silicate Piezoelectric Bioactive Composite Ceramics[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(9): 3367-3374.

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