Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2927-2932 |
| Number of pages | 6 |
| Journal | Biomaterials |
| Volume | 25 |
| Issue number | 15 |
| DOIs | |
| State | Published - Jul 2004 |
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ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Biomedical Engineering
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Interaction of hydroxyapatite-titanium at elevated temperature in vacuum environment. / Yang, Yunzhi; Kim, Kyo Han; Agrawal, C. Mauli; Ong, Joo L.
In: Biomaterials, Vol. 25, No. 15, 07.2004, p. 2927-2932.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Interaction of hydroxyapatite-titanium at elevated temperature in vacuum environment
AU - Yang, Yunzhi
AU - Kim, Kyo Han
AU - Agrawal, C. Mauli
AU - Ong, Joo L.
PY - 2004/7
Y1 - 2004/7
N2 - In this study, the interaction between hydroxyapatite (HA) and titanium (Ti) at elevated temperature in vacuum environment was investigated. The 80wt% HA-20wt% Ti powder mixtures and 90wt% HA-10wt% Ti powder mixtures were dry pressed and heat-treated at 1100°C in vacuum environment. HA powders and the commercially pure Ti powders were used as controls. The heat-treated samples were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscope (SEM) and energy disperse spectra. XRD and SEM indicated densification of metallic Ti specimens during the in-vacuum heat treatment. Heat treatment of HA specimens in vacuum resulted in the loss of hydroxyl groups as well the formation of a secondary β-tricalcium phosphate phase. Metallic Ti was not observed in the in-vacuum heat-treated HA-Ti specimens. However, α-tricalcium phosphate, tetracalcium phosphate and calcium titanium oxide were observed for the in-vacuum heat-treated HA-Ti specimens. It was concluded that the in-vacuum heat-treatment process completely converted the metal-ceramics composites to ceramic composites.
AB - In this study, the interaction between hydroxyapatite (HA) and titanium (Ti) at elevated temperature in vacuum environment was investigated. The 80wt% HA-20wt% Ti powder mixtures and 90wt% HA-10wt% Ti powder mixtures were dry pressed and heat-treated at 1100°C in vacuum environment. HA powders and the commercially pure Ti powders were used as controls. The heat-treated samples were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscope (SEM) and energy disperse spectra. XRD and SEM indicated densification of metallic Ti specimens during the in-vacuum heat treatment. Heat treatment of HA specimens in vacuum resulted in the loss of hydroxyl groups as well the formation of a secondary β-tricalcium phosphate phase. Metallic Ti was not observed in the in-vacuum heat-treated HA-Ti specimens. However, α-tricalcium phosphate, tetracalcium phosphate and calcium titanium oxide were observed for the in-vacuum heat-treated HA-Ti specimens. It was concluded that the in-vacuum heat-treatment process completely converted the metal-ceramics composites to ceramic composites.
KW - Heat treatment
KW - Hydroxyapatite
KW - Scanning electron microscopy
KW - Titanium
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=1142285438&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1142285438&partnerID=8YFLogxK
U2 - 10.1016/j.biomaterials.2003.09.072
DO - 10.1016/j.biomaterials.2003.09.072
M3 - Article
C2 - 14967524
AN - SCOPUS:1142285438
VL - 25
SP - 2927
EP - 2932
JO - Biomaterials
JF - Biomaterials
SN - 0142-9612
IS - 15
ER -