Dispersion behavior of wet chemical synthesized hydroxyapatite
Dispersion behavior of wet chemical synthesized hydroxyapatite
The use of hydroxyapatite (HA) as a ceramic material for osteo-implants is restricted because of its low mechanical strength and low toughness. Gelcasting method is used to obtain a high density forming body of HA. In this paper, the wet chemical synthesized HA powder was characterized in order to investigate its dispersing behavior and develop gelcasting slips suitable to produce samples of complex shapes. The maximum value of zeta-potential is 24.6mv at pH8.95. The high loading HA suspension dispersed by the most promising dispersant 1.5wt% ammonium salt of poly(acrylic acid) was formulated at 31 vol%.
235-237
Tsinghua University Press
Yang, S.F.
e0018adf-8123-4a54-b8dd-306c10ca48f1
Cao, X.G.
518da374-1879-4a63-a4a0-280bbed48619
Zhang, S.X.
209f7c20-70d4-4307-8e33-39011ef1f765
Tian, J.M.
a2a8ad6b-6c9e-4f83-9d82-454083e2fc9d
1999
Yang, S.F.
e0018adf-8123-4a54-b8dd-306c10ca48f1
Cao, X.G.
518da374-1879-4a63-a4a0-280bbed48619
Zhang, S.X.
209f7c20-70d4-4307-8e33-39011ef1f765
Tian, J.M.
a2a8ad6b-6c9e-4f83-9d82-454083e2fc9d
Yang, S.F., Cao, X.G., Zhang, S.X. and Tian, J.M.
(1999)
Dispersion behavior of wet chemical synthesized hydroxyapatite.
Guan, D.S. and Yan, Z.D.
(eds.)
In Proceedings of the First China International Conference on High-Performance Ceramics.
Tsinghua University Press.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The use of hydroxyapatite (HA) as a ceramic material for osteo-implants is restricted because of its low mechanical strength and low toughness. Gelcasting method is used to obtain a high density forming body of HA. In this paper, the wet chemical synthesized HA powder was characterized in order to investigate its dispersing behavior and develop gelcasting slips suitable to produce samples of complex shapes. The maximum value of zeta-potential is 24.6mv at pH8.95. The high loading HA suspension dispersed by the most promising dispersant 1.5wt% ammonium salt of poly(acrylic acid) was formulated at 31 vol%.
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Published date: 1999
Venue - Dates:
First China International Conference of High-Performance Ceramics, Beijing, China, 1998-10-31 - 1998-11-02
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 165099
URI: http://eprints.soton.ac.uk/id/eprint/165099
PURE UUID: c97abdc0-5d6a-4918-b58d-55ea6d0e8c10
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Date deposited: 08 Oct 2010 09:11
Last modified: 10 Dec 2021 18:31
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Contributors
Author:
X.G. Cao
Author:
S.X. Zhang
Author:
J.M. Tian
Editor:
D.S. Guan
Editor:
Z.D. Yan
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