Abstract

PARRA SUA, Johanna P; PIAMBA TULCAN, Oscar E  and  OLAYA FLOREZ, Jhon J. High-temperature corrosion resistance of Bi_xTi_yO_z thin deposited by R.F. sputtering. Rev. LatinAm. Metal. Mater. [online]. 2016, vol.36, n.1, pp.2-8. ISSN 0255-6952.

This study shows the high-temperature corrosion resistance of bismuth titanate (Bi_xTi_yO_z) amorphous thin films deposited by rf sputtering technique. The corrosion test at high temperature were made with 100 cycles in air atmosphere at 600 °C, each cycle consisting 1 hour of heating and 1 hour of cooling. The results of mass loss and corrosion products were characterized by x-ray diffraction (XRD), Auger electron spectroscopy (AES) and scanning electron microscopy (SEM). The results showed a good corrosion resistance up to 60 thermal cycles where a noticeable degradation of the coating was observed.

Keywords : Corrosion; temperature; XRD; AES.

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