Oxidation Resistance of Coated and Uncoated SiC-Based Refractories

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Abstract:

The potentialities of ceramic coatings as a protective layer have been discussed by the comparison of the oxidation kinetics between coated and uncoated SiC-based materials. It was observed that a thermally sprayed coating of titanium dioxide (TiO2), in the same conditions of oxidation, decreases the kinetics constants and acts as a diffusion barrier. The evolution of the (micro-)structural features of oxidized materials were followed by XRD and SEM.

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135-142

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October 2010

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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