We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Mechanical Reinforcement of Diopside Bone Scaffolds with Carbon Nanotubes.
- Authors
Cijun Shuai; Tingting Liu; Chengde Gao; Pei Feng; Shuping Peng
- Abstract
Carbon nanotubes are ideal candidates for the mechanical reinforcement of ceramic due to their excellent mechanical properties, high aspect ratio and nanometer scale diameter. In this study, the effects of multi-walled carbon nanotubes (MWCNTs) on the mechanical properties of diopside (Di) scaffolds fabricated by selective laser sintering were investigated. Results showed that compressive strength and fracture toughness improved significantly with increasing MWCNTs from 0.5 to 2 wt %, and then declined with increasing MWCNTs to 5 wt %. Compressive strength and fracture toughness were enhanced by 106% and 21%, respectively. The reinforcing mechanisms were identified as crack deflection, MWCNTs crack bridging and pull-out. Further, the scaffolds exhibited good apatite-formation ability and supported adhesion and proliferation of cells in vitro.
- Subjects
TISSUE scaffolds; DIOPSIDE; CERAMICS; MULTIWALLED carbon nanotubes; MECHANICAL behavior of materials
- Publication
International Journal of Molecular Sciences, 2014, Vol 15, Issue 10, p19319
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms151019319