Abstract
Thin calcium phosphate coatings with a thickness of 0.09 to 2.7 μm were prepared by radio-frequency magnetron sputtering deposition on NiTi and Ti substrates at a substrate temperature of 500 °C in argon atmosphere. Scanning electron microscopy (SEM) showed that the surface structure is uniform and dense without visible defects (pores and microcracks). Rutherford backscattering spectroscopy (RBS) and energy-dispersive X-ray spectroscopy (EDX) confirmed that the coating contains calcium, phosphorus, and oxygen with a uniform composition. Crystallographically, the coating consists of crystalline hydroxyapatite which is also supported by infrared spectroscopy. The mechanical characteristics of the coating were measured by nanoindentation (Vickers indenter), giving a nanohardness of 10 GPa and a Young's modulus of 110 GPa. The strength of adhesion of the calcium phosphate coating to the metallic substrates depended on the coating's thickness and decreased for a thickness larger than 1.6 μm. No difference was observed between NiTi and Ti substrates.
| Original language | English |
|---|---|
| Pages (from-to) | 3913-3920 |
| Number of pages | 8 |
| Journal | Surface and Coatings Technology |
| Volume | 202 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 15 May 2008 |
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Keywords
- Adhesion strength
- Calcium phosphate coating
- rf-magnetron sputtering
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Condensed Matter Physics
- Surfaces and Interfaces
Cite this
The preparation of calcium phosphate coatings on titanium and nickel-titanium by rf-magnetron-sputtered deposition : Composition, structure and micromechanical properties. / Pichugin, V. F.; Surmenev, R. A.; Shesterikov, E. V.; Ryabtseva, M. A.; Eshenko, E. V.; Tverdokhlebov, S. I.; Prymak, O.; Epple, M.
In: Surface and Coatings Technology, Vol. 202, No. 16, 15.05.2008, p. 3913-3920.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The preparation of calcium phosphate coatings on titanium and nickel-titanium by rf-magnetron-sputtered deposition
T2 - Composition, structure and micromechanical properties
AU - Pichugin, V. F.
AU - Surmenev, R. A.
AU - Shesterikov, E. V.
AU - Ryabtseva, M. A.
AU - Eshenko, E. V.
AU - Tverdokhlebov, S. I.
AU - Prymak, O.
AU - Epple, M.
PY - 2008/5/15
Y1 - 2008/5/15
N2 - Thin calcium phosphate coatings with a thickness of 0.09 to 2.7 μm were prepared by radio-frequency magnetron sputtering deposition on NiTi and Ti substrates at a substrate temperature of 500 °C in argon atmosphere. Scanning electron microscopy (SEM) showed that the surface structure is uniform and dense without visible defects (pores and microcracks). Rutherford backscattering spectroscopy (RBS) and energy-dispersive X-ray spectroscopy (EDX) confirmed that the coating contains calcium, phosphorus, and oxygen with a uniform composition. Crystallographically, the coating consists of crystalline hydroxyapatite which is also supported by infrared spectroscopy. The mechanical characteristics of the coating were measured by nanoindentation (Vickers indenter), giving a nanohardness of 10 GPa and a Young's modulus of 110 GPa. The strength of adhesion of the calcium phosphate coating to the metallic substrates depended on the coating's thickness and decreased for a thickness larger than 1.6 μm. No difference was observed between NiTi and Ti substrates.
AB - Thin calcium phosphate coatings with a thickness of 0.09 to 2.7 μm were prepared by radio-frequency magnetron sputtering deposition on NiTi and Ti substrates at a substrate temperature of 500 °C in argon atmosphere. Scanning electron microscopy (SEM) showed that the surface structure is uniform and dense without visible defects (pores and microcracks). Rutherford backscattering spectroscopy (RBS) and energy-dispersive X-ray spectroscopy (EDX) confirmed that the coating contains calcium, phosphorus, and oxygen with a uniform composition. Crystallographically, the coating consists of crystalline hydroxyapatite which is also supported by infrared spectroscopy. The mechanical characteristics of the coating were measured by nanoindentation (Vickers indenter), giving a nanohardness of 10 GPa and a Young's modulus of 110 GPa. The strength of adhesion of the calcium phosphate coating to the metallic substrates depended on the coating's thickness and decreased for a thickness larger than 1.6 μm. No difference was observed between NiTi and Ti substrates.
KW - Adhesion strength
KW - Calcium phosphate coating
KW - rf-magnetron sputtering
UR - http://www.scopus.com/inward/record.url?scp=41849118081&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=41849118081&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2008.01.038
DO - 10.1016/j.surfcoat.2008.01.038
M3 - Article
VL - 202
SP - 3913
EP - 3920
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
IS - 16
ER -