Investigation of the Properties of Plasma Sprayed Titania
Keywords:coating, plasma spraying, microstructure, TiO2.
Three different processing regimes with different processing temperature and their effect on coating microstructure and crystallinity have been investigated. The nano-sized coatings were deposited employing non-equilibrium plasma spraying technology at atmospheric pressure DC plasma torch. Microstructure of polished cross-section of the as-sprayed coatings was investigated by optical and scanning electron microscopy (SEM). Phase analysis and crystallite size of the plasma sprayed titania were identified by X-ray diffractometry (XRD). Coatings properties such as density and porosity were dependent on the spray conditions.
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