Sintering behaviour of calcium phosphate filaments for use as hard tissue scaffolds
Sintering behaviour of calcium phosphate filaments for use as hard tissue scaffolds
Lattices consisting of hydroxyapatite (HA) and ?-tricalcium phosphate (?-TCP) mixtures were prepared by extrusion freeforming to serve as bone substitute structures in which both shape and structural hierarchy are determined by computer control. Fine ceramic filaments were prepared from a non-aqueous, solvent-based, ceramic–polymer paste and sintered at temperatures from 1100 to 1300 °C. The characteristics of the sintered filaments were investigated because this determines the resulting microporosity and phase content while the higher levels of porosity are computer controlled. The effects of HA/?-TCP ratio and sintering temperature on the microstructure, density, shrinkage and final phase content were studied. These results provide a design reference for hard tissue engineering scaffolds built from these materials.
extrusion freeforming, sintering, biomedical applications, apatite
159-167
Yang, H.Y.
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Yang, S.F.
e0018adf-8123-4a54-b8dd-306c10ca48f1
Chi, X.P.
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Evans, J.R.G.
6f6c8a4c-24ac-4144-a555-51438e4d40e0
Thompson, I.
2707fa6a-3614-4fe6-b55a-a29d87d37f3d
Cook, R.J.
fb9ca464-c20e-446c-8379-5a79b5a8dd96
Robinson, P.
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2008
Yang, H.Y.
2becc2d6-1748-4eba-b907-69e006e81d91
Yang, S.F.
e0018adf-8123-4a54-b8dd-306c10ca48f1
Chi, X.P.
b6611614-ea7b-443c-a251-061c5a34c470
Evans, J.R.G.
6f6c8a4c-24ac-4144-a555-51438e4d40e0
Thompson, I.
2707fa6a-3614-4fe6-b55a-a29d87d37f3d
Cook, R.J.
fb9ca464-c20e-446c-8379-5a79b5a8dd96
Robinson, P.
a07a8f75-1399-4a4e-a9c7-2668b488d908
Yang, H.Y., Yang, S.F., Chi, X.P., Evans, J.R.G., Thompson, I., Cook, R.J. and Robinson, P.
(2008)
Sintering behaviour of calcium phosphate filaments for use as hard tissue scaffolds.
Journal of the European Ceramic Society, 28 (1), .
(doi:10.1016/j.jeurceramsoc.2007.04.013).
Abstract
Lattices consisting of hydroxyapatite (HA) and ?-tricalcium phosphate (?-TCP) mixtures were prepared by extrusion freeforming to serve as bone substitute structures in which both shape and structural hierarchy are determined by computer control. Fine ceramic filaments were prepared from a non-aqueous, solvent-based, ceramic–polymer paste and sintered at temperatures from 1100 to 1300 °C. The characteristics of the sintered filaments were investigated because this determines the resulting microporosity and phase content while the higher levels of porosity are computer controlled. The effects of HA/?-TCP ratio and sintering temperature on the microstructure, density, shrinkage and final phase content were studied. These results provide a design reference for hard tissue engineering scaffolds built from these materials.
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Published date: 2008
Keywords:
extrusion freeforming, sintering, biomedical applications, apatite
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 165043
URI: http://eprints.soton.ac.uk/id/eprint/165043
ISSN: 0955-2219
PURE UUID: e762e641-517c-4e00-ba5f-4ca7851be837
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Date deposited: 07 Oct 2010 10:59
Last modified: 14 Mar 2024 02:09
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Author:
H.Y. Yang
Author:
X.P. Chi
Author:
J.R.G. Evans
Author:
I. Thompson
Author:
R.J. Cook
Author:
P. Robinson
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