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Abstract
Hydroxyapatite (HA) bioceramic scaffolds were fabricated by using digital light processing (DLP) based additive manufacturing. Key issues on the HA bioceramic scaffolds, including dispersion, DLP fabrication, sintering, mechanical properties, and biocompatibility were discussed in detail. Firstly, the effects of dispersant dosage, solid loading, and sintering temperature were studied. The optimal dispersant dosage, solid loading, and sintering temperature were 2 wt%, 50 vol%, and 1250 °C, respectively. Then, the mechanical properties and biocompatibility of the HA bioceramic scaffolds were investigated. The DLP-prepared porous HA bioceramic scaffold was found to exhibit excellent mechanical properties and degradation behavior. From this study, DLP technique shows good potential for manufacturing HA bioceramic scaffolds.
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Details
1 Beijing Institute of Technology, Institute of Advanced Structure Technology, Beijing, China (GRID:grid.43555.32) (ISNI:0000 0000 8841 6246)
2 Beijing Institute of Technology, School of Materials Science and Engineering, Beijing, China (GRID:grid.43555.32) (ISNI:0000 0000 8841 6246)
3 Harbin University of Science and Technology, School of Materials Science and Engineering, Harbin, China (GRID:grid.411994.0) (ISNI:0000 0000 8621 1394)
4 Shanghai Aircraft Manufacturing Co., Ltd., Shanghai, China (GRID:grid.411994.0)