Preparation, microstructure and property of zinc-substituted hydroxyapatite/magnesium biocomposite
Zinc-substituted hydroxyapatite (Zn-HA, Ca10-xZnx(PO4)6(OH)2) is used as the modified material of hydroxyapatite (HA, Ca10 (PO4)6(OH)2). In this work, Zn-HA with Zn contents of 10-30 mol% was used to produce Zn-HA/Mg composites by powder metallurgy. The calculated results showed that the cr...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
International Institute for the Science of Sintering, Beograd
2017-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2017/0350-820X1704399J.pdf |
| Summary: | Zinc-substituted hydroxyapatite (Zn-HA, Ca10-xZnx(PO4)6(OH)2) is used as the
modified material of hydroxyapatite (HA, Ca10 (PO4)6(OH)2). In this work,
Zn-HA with Zn contents of 10-30 mol% was used to produce Zn-HA/Mg composites
by powder metallurgy. The calculated results showed that the crystallite size
and lattice parameters of Zn-HA powders varied with the contents of 0-30 mol%
Zn, confirming that the divalent Zn2+ ions can substitute Ca2+ ions in HA.
Furthermore, the microstructure, mechanical property and electrochemical
corrosion behavior of Zn-HA/Mg composites were investigated by SEM,
compression tests, and electrochemical corrosion tests, respectively. The
results indicate that the highest density and lowest porosity are obtained
and the optimal mechanical property and corrosion resistance are achieved in
the Zn-HA/Mg composites with 20 mol% Zn. |
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| ISSN: | 0350-820X 1820-7413 |