SURFACE TREATMENT AND EXAMINATION OF GRADE 2 AND GRADE 5 TITANIUM

Authors

  • Peter Nagy Budapest University of Technology and Economics, Department of Materials Science and Engineering, Budapest, Hungary
  • Miklos Weszl nanoTi Limited, Birmingham, UK
  • Krisztian Laszlo Toth nanoTi Limited, Birmingham, UK
  • Imre Kientzl Budapest University of Technology and Economics, Department of Materials Science and Engineering, Budapest, Hungary
  • Gyorgy Ring Budapest University of Technology and Economics, Department of Materials Science and Engineering, Budapest, Hungary
  • Peter Szabadits Budapest University of Technology and Economics, Department of Materials Science and Engineering, Budapest, Hungary
  • Eszter Bognar MTA–BME Research Group for Composite Science and Technology, Budapest, Hungary

DOI:

https://doi.org/10.14311/APP.2016.3.0043

Abstract

Surface characteristics play an important role in the implant-bone integration that is required for the long-term reliability of dental and orthopedic implants. In this paper, we investigate the effect of acid etching on the mass reduction and roughness of grade 2 and grade 5 Ti under controlled experimental conditions. Three different etching compounds were investigated: 30% HCl, 85% H3PO4 and the compound of 30% (COOH)2 × 2H2O and 30% H2O2 in various treatment intervals under controlled temperature. Stereo microscopy, scanning electron microscopy, roughness and weight measurements were carried out on the samples. We found that neither 85% H3PO4 nor the compound of 30% (COOH)2 × 2H2O and 30% H2O2 were able to remove the machining marks from the surface of Ti discs in our experimental setting. On the other hand, etching in 30% HCl yielded even surfaces both on Ti grade 2 and 5 discs. We also found that etching at higher temperatures in 30% HCl resulted in significant mass loss.

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Published

2016-02-11

Issue

Vol. 3 (2016): XIVth YOUTH SYMPOSIUM ON EXPERIMENTAL SOLID MECHANICS

Section

Articles

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