کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1659132 | 1517681 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Preparation of hydroxyapatite functionally gradient coating on titanium substrate using a combination of electrophoretic deposition and reaction bonding process Preparation of hydroxyapatite functionally gradient coating on titanium substrate using a combination of electrophoretic deposition and reaction bonding process](/preview/png/1659132.png)
The major difficulty in fabricating hydroxyapatite (HA) coating on titanium substrate using the electrophoretic deposition (EPD) process is the full densification and crack prevention of the coating under the restricted sintering temperature. In this work, a combination of electrophoretic deposition and reaction bonding process was developed for the fabrication of HA/alumina (Al2O3) composite coating and HA functionally gradient coating (FGC) on titanium substrates at a relatively low sintering temperature of 850 °C. The results showed that the reaction bonding process enhances the coating's densification. The HA FGC with a thickness of about 40 μm was crack-free and exhibited obvious gradient variation in chemical composition and microstructure. The HA FGC also exhibited much higher bonding strength than HA coating with the same thickness.
Journal: Surface and Coatings Technology - Volume 204, Issues 21–22, 15 August 2010, Pages 3387–3392