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Zhiyong Ma,Jun Xie,Xian Zhen Shan,Jiabin Zhang,Qifan Wang 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.2
45S5 Bioglass® has been widely used in bone tissue engineering scaffold due to its high bioactive properties. 3D printing method is a popular way to fabricate scaffolds. The extrusion printing method causes poor shape and dimensional accuracy of the scaffolds. The ordinary light-cured 3D printing method leads to low solid content of the scaffolds, which causes large shape shrinkages and low mechanical properties after sintering. In this study, we employed the stereolithographic ceramic manufacturing (SLCM) method to fabricate 45S5 Bioglass®-based scaffolds. Coating-then-stereolithographic layer by layer is the core process of SLCM method. Based on the optimization of the parameters of SLCM process and sintering process, the solid content of the 45S5 scaffold can be improved to a maximum of 70 %, and the linear shrinkage and compressive strength were effectively improved. The proposed method can be used not only for fabricating bone tissue engineering scaffold, but also for manufacturing other high solid content ceramic products.