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Preparation and Characterization of HAP-Glass Porous Composites
Paper Type  |
Contributed Paper |
Title |
Preparation and Characterization of HAP-Glass Porous Composites |
Author |
Charussri Lorprayoon* and Shigeki Morimoto |
Email |
char@ccs.sut.ac.th / shigeki@ccs.sut.ac.th |
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Abstract: The aim of this study was to prepare a porous biocomposite material for bone defect replacement. Hydroxyapatite (HAP), a bioactive and biocompatible powder, was mixed with phase-separable borosilicate glass containing calcium oxide. Calcium carbonate was added as a foaming agent. The composite specimens were made by mixing, pressing and sintering. Phase separation of the glassy phase was controlled by heat treatment. Thereafter, the specimens were acid-leached and characterized in terms of phase, pore size and pore structure by means of x-ray diffractometry (XRD), scanning electron microscopy (SEM) and mercury porosimetry. The evaluations were performed both before and after acid leaching. The results showed that HAP-glass porous composites containing a HAP phase and a minor amount of the second phase and having an interconnected pore structure could be prepared.
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Start & End Page |
495 - 500 |
Received Date |
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Revised Date |
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Accepted Date |
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Full Text |
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Keyword |
hydroxyapatite-glass composite, porous biocomposite |
Volume |
Vol.32 No.3 (SEPTEMBER 2005) |
DOI |
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Citation |
Lorprayoon* C.. and Morimoto S.., Preparation and Characterization of HAP-Glass Porous Composites, Chiang Mai Journal of Science, 2005; 32(3): 495-500. |
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