Abstract
This paper reports on the surface modification of a Ti-15Mo alloy by plasma electrolytic oxidation (PEO). This process was carried out in solutions of 0.1 M Ca(H2PO2)2 with various concentrations of tricalcium phosphate (Ca3(PO4)2), wollastonite (CaSiO3), or silica (SiO2) using voltages of up to 350 V. The surface microstructure (SEM, cross-section of coating), roughness and chemical composition (energy-dispersive X-ray spectroscopy, thin layer X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy) of the porous oxide layers were investigated. The concentration of powder added to the solution changed the chemical composition and morphology of PEO coatings on the Ti-15Mo alloy surface. Calcium and phosphorous compounds were detected in the coatings formed on the substrate by the PEO process at 300 V.
| Original language | English |
|---|---|
| Pages (from-to) | 259-272 |
| Number of pages | 14 |
| Journal | Materials Science and Engineering C |
| Volume | 39 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jun 2014 |
Keywords
- Plasma electrolytic oxidation
- Silica
- Surface modification
- TCP
- Vanadium-free titanium alloy
- Wollastonite
ASJC Scopus subject areas
- General Medicine
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