Characterisation of coloured coatings on AISI 304
Keywords:Anticorrosive coating, AISI 304, Ellipsometry, Colouring
A common method for obtaining colour coatings on stainless steel surfaces is by dipping in strongly oxidizing solutions (H2SO4-CrO3) at 70°C. This work improves the knowledge of these coatings by means of techniques that were not available some years ago, such as ellipsometry, to determine the refraction index and the thickness, and atomic field microscopy (AFM), to observe the coloured surface. From these techniques, it is possible to state that films are formed by an aggregation of particle ranging in size from 5 to 15 nm, the interstices are pores of approximately 5 nm diameter.
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How to Cite
López, J., Blanco, E., Botella, J., & Esquivias, L. (1998). Characterisation of coloured coatings on AISI 304. Revista De Metalurgia, 34(Extra), 105–108. https://doi.org/10.3989/revmetalm.1998.v34.iExtra.719
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