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Biocompatibility of 13-93 Bioactive Glass-SiC Fabric Composites

  • Park, Jewon (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Na, Hyein (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Choi, Sung-Churl (Division of Materials Science and Engineering Hanyang University) ;
  • Kim, Hyeong-Jun (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology)
  • Received : 2019.03.07
  • Accepted : 2019.03.19
  • Published : 2019.03.31

Abstract

Bioactive glass (BG) finds limited use as a bone replacement material owing to its low mechanical properties. In order to solve this problem, the micro-sized 13-93 BG was prepared as a fabric composite with SiC microfibers, and its mechanical properties and biocompatibility were investigated in this study. The tensile strengths of BG-SiC fiber-bundle composites increased in proportion to the number of SiC fibers. In particular, even when only one SiC fiber was substituted, the tensile strength increased by 81% to 1428 MPa. In the early stage of the in-vitro test, a silica-rich layer was formed on the surface of the 13-93 BG fibers. With time, calcium phosphate grew on the silica-rich layer and the BG fibers were delaminated. On the other hand, no products were observed on the SiC fibers for 7 days, therefore, SiC fibers are expected to maintain their strength even after transplantation in the body.

Keywords

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