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Wen, C.E.; Xu, W.; Hu, W.Y.; Hodgson, P.D.
Acta biomaterialia, 05/2007, Letnik: 3, Številka: 3Journal Article
A simple sol–gel method was developed for hydroxyapatite/titania (HA/TiO 2) coatings on non-toxic titanium–zirconium (TiZr) alloy for biomedical applications. The HA/TiO 2-coated TiZr alloy displayed excellent bioactivity when soaked in a simulated body fluid (SBF) for an appropriate period. Differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy-energy dispersive spectrometry were used to characterize the phase transformations and the surface structures and to assess the in vitro tests. The HA/TiO 2 layers were spin-coated on the surface of TiZr alloy at a speed of 3000 rpm for 15 s, followed by a heat treatment at 600 °C for 20 min in an argon atmosphere sequentially. The TiO 2 layer exhibited a cracked surface and an anatase structure and the HA layer displayed a uniform dense structure. Both the TiO 2 and HA layers were 25 μm thick, and the total thickness of the HA/TiO 2 coatings was 50 μm. The TiZr alloy after the above HA/TiO 2 coatings displayed excellent bone-like apatite-forming ability when soaked in SBF and can be anticipated to be a promising load-bearing implant material.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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