Rapid manufacturing of bioceramic/polymer composite implants by selective laser sintering

Hao, L., Savalini, M.M., Harris, R.A., Zhang, Y. and Tanner, K.E. (2009) Rapid manufacturing of bioceramic/polymer composite implants by selective laser sintering. International Journal of Computer Applications in Technology, 36(1), pp. 25-31. (doi: 10.1504/IJCAT.2009.026667)

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Abstract

Selective Laser Sintering (SLS), an additive rapid manufacturing technique, is capable of producing the required product directly and automatically from a Three-Dimensional (3D) computer model representation. SLS has been selected to build implant and scaffold structures using composite materials consisting of a polymer and a bioactive ceramic. HydroxyApatite (HA), a bioceramic that encourages bone apposition, can be combined with High Density Poly Ethylene (HDPE), a biocompatible polymer, to form a material with appropriate stiffness, toughness and bioactivity for use in the body. A miniature SLS system was built to minimise the usage of the expensive experimental material. It was used to determine the CO2 laser sintering operation window of the HA/HDPE composites and to investigate the effect of the process parameters on the surface morphology of the sintered HA/HDPE layer. The potential of SLS for the rapid manufacture of customised implants using HA/HDPE composite is demonstrated by the sintering of a five-layer HA-HDPE block.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Tanner, Professor Kathleen
Authors: Hao, L., Savalini, M.M., Harris, R.A., Zhang, Y., and Tanner, K.E.
Subjects:T Technology > T Technology (General)
T Technology > TS Manufactures
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:International Journal of Computer Applications in Technology
ISSN:0952-8091
ISSN (Online):1741-5047

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