Autors: Kandeva, M. K., V. Blaskov., N. G. Kostova., I. Stambolova., K. Balashev., S. Vassilev., A. Eliyas., M. Shipochka.
Title: Comparative Study of Wear Resistance of TiO2 Coatings with Cerium and Chromium Additives
Keywords: tribological properties, TiO2 films, Cr- or Ce-modified TiO2

Abstract: The spray pyrolysis method has been applied to obtain cerium and chromium modified titania coatings. Wear resistance tests of the obtained samples have been carried out to compare the effects of Ce and Cr additives. The experimental runs of abrasive wearing of coatings were realised by means of the test rig TABER ABRASER according to the kinematical scheme ‘disk-on-disk’. The absolute wear resistance was measured by mass I in m/mg. The XRD patterns identified nanosised anatase phase. The oxidation states of Ti, Cr and Ce were characterized by XPS study. The AFM images have revealed that in the modified coatings the films particles have strong adhesion to the substrate, while on the reference sample of non-modified TiO2 coatings there are spots, which have been completely damaged. After 400 abrasive cycles the surface roughness of the Cr-doped sample was decreased 5.7 times.

References

    Issue

    Journal Balk Tribol Assoc, vol. 21, issue 4, pp. 857-865, 2015, Bulgaria, SciBulCom Ltd., ISBN ISSN: 1310-4772

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