| Properties of Plasma Sprayed Al2O3-13TiO2 and ZrO2
Blended Coatings on Biomedical Alloy |
Sathyavageeswaran Sathish,a Narayanaswamy Balaji,b Geetha Manivasagamc and
Singanahalli Thippa Reddy Arunab,
Pages : 216-223
DOI: 10.1080/0371750X.2021.1978865
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| Abstract |
| Plasma spray grade Al2O3-13TiO2 and ZrO2 powders were blended physically in different
proportions (80 wt% Al2O3-13TiO2 + 20 wt% ZrO2, 20 wt% Al2O3-13TiO2 + 80 wt% ZrO2
and 50 wt% Al2O3-13TiO2 + 50 wt% ZrO2) and plasma sprayed on biomedical
Ti-13Nb-13Zr alloy using identical plasma spray parameters. Microstructural and phase
analyses of the as-sprayed coatings were carried out using scanning electron
microscopy and X-ray diffractometry. Results showed that the 80% Al2O3-13TiO2 +
20% ZrO2 coating had enhanced corrosion and wear resistance compared to the other
two compositions and appeared to be a propitious coating for biomedical application.
[Keywords: Plasma spray, Hardness, Corrosion, Wear, Microstructure] |
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