Protection of titanium metal by nanohydroxyapatite coating with zirconia and alumina second phases

Family, R ; Sharif Universty of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1134/S2070205112060032
  3. Publisher: 2012
  4. Abstract:
  5. In this study hydroxyapatite (HA)/zirconia/alumina composite coatings on titanium metal was carried out using Sol-Gel dip coating and calcination process. Hydroxyapatite-Alumina-Zirconia sol, coated samples in three processes by changing final sol stirring time, aging time, calcination temperature of synthesized powder and prepared coating and rate of coating. Some parts of prepared sol were also synthesized and became powder in all three processes. Scanning electron microscopy was used to estimate the particle size of the surface and for morphological analysis. The functional group and crystallization characteristics of the powders were analyzed using (FTIR) and X-Ray diffraction (XRD). Results show that the morphology of HA-Alumina-Zirconia coatings is more homogenous in the second process with 2 hours final sol stirring time, 20 hours aging time under stirring at 60, 675 °C calcination temperature for coating and 850 C for powder and 60mm/min rate of dip coating
  6. Keywords:
  7. Aging time ; Calcination temperature ; Coated sample ; Dip coating ; FTIR ; Morphological analysis ; Nano-hydroxyapatite ; Sol gel dip coating ; Synthesized powder ; Titanium metals ; Alumina ; Calcination ; Composite coatings ; Functional groups ; Hydroxyapatite ; Powder coatings ; Powder metals ; Scanning electron microscopy ; Sols ; Titanium ; X ray diffraction ; X ray powder diffraction ; Zirconia
  8. Source: Protection of Metals and Physical Chemistry of Surfaces ; Volume 48, Issue 6 , 2012 , Pages 688-691 ; 20702051 (ISSN)
  9. URL: http://link.springer.com/article/10.1134%2FS2070205112060032