Abstract
In this study the effects of bond-coatings on various calcium phosphate coatings were studied. From human teeth dentine (DFA) and enamel derived fluorapatite (EFA) plasma powders were sprayed on titanium with and without a bond-coating. As control group original hydroxyapatite (HA) powder for biomedical spraying purposes was also used on titanium with and without a bond-coating. Tensile strength tests were performed according to the F-633 ASTM standards. It was observed that bond-coatings had significantly increased the tensile strength values compared to non-bond coatings. It was interesting that the use of a bond-coating did not influence any remarkable tensile strength values compared to original coating values but that the % of micro voids has decreased from 1.11 % to 0.29 %. This means that a better plasma coating with less micro voids, which could affect the quality of the coating with continuous progress, has been provided. In other words, the use of bond-coatings was found to be very useful. This phenomenon should be investigated in further studies to develop better implant coats.
Original language | English |
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Pages (from-to) | 315-318 |
Number of pages | 4 |
Journal | Key Engineering Materials |
Volume | 240-242 |
DOIs | |
Publication status | Published - 2003 |
Event | Proceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine - Sydney, NSW, Australia Duration: 4 Dec 2002 → 8 Dec 2002 |
Keywords
- Bond-coatings
- Fluorapatite
- Hydroxyapatite
- Plasma-spraying