Abstract
The deposition of a biocompatible calcium phosphate coating on the surface of materials for biomedical implants by rf-magnetron sputtering is reported. The deposition parameters to prepare either stoichiometric crystalline hydroxyapatite or amorphous calcium phosphate coating with a molar Ca/P ratio from 1.53 to 3.88 were established. Crystalline hydroxyapatite coating with a Ca/P ratio of 1.60±0.07 can be deposited if the rf-power density is 0.49W cm-2 and if the samples are arranged within the area of the target erosion zone. A thorough investigation of the influence of rf-power, DC-bias on the substrate, deposition time on the properties of the calcium phosphate coating allowed to formulate a mechanism for the film growth.
| Original language | English |
|---|---|
| Pages (from-to) | 3600-3606 |
| Number of pages | 7 |
| Journal | Surface and Coatings Technology |
| Volume | 205 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 15 Mar 2011 |
Keywords
- Calcium phosphate
- Hydroxyapatite
- Implant materials
- Rf-magnetron sputtering
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
- Surfaces and Interfaces
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Surmenev, R. A., Surmeneva, M. A., Evdokimov, K. E., Pichugin, V. F., Peitsch, T., & Epple, M. (2011). The influence of the deposition parameters on the properties of an rf-magnetron-deposited nanostructured calcium phosphate coating and a possible growth mechanism. Surface and Coatings Technology, 205(12), 3600-3606. https://doi.org/10.1016/j.surfcoat.2010.12.039