Liquid Oxide Flow during Oxidation of Zirconium Diboride-Silicon Carbide Ultra High Temperature Ceramics

Sindhura Gangireddy; Sigrun N. Karlsdottir; J.W. Halloran

doi:10.4028/www.scientific.net/KEM.434-435.144

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Liquid Oxide Flow during Oxidation of Zirconium...

Liquid Oxide Flow during Oxidation of Zirconium Diboride-Silicon Carbide Ultra High Temperature Ceramics

Abstract:

Recent ideas on the oxidation of ZrB2-SiC are presented, emphasizing the behavior of the boria-silica-zirconia liquid (BSZ liquid) which forms during oxidation and flows to transport silica and zirconia to the surface of the scale. Oxide film microstructure is strongly influenced by the boron oxide, which acts as a volatile flux.

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Key Engineering Materials (Volumes 434-435)

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144-148

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https://doi.org/10.4028/www.scientific.net/KEM.434-435.144

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March 2010

Authors:

Sindhura Gangireddy, Sigrun N. Karlsdottir, J.W. Halloran

Keywords:

Oxidation, Phase Equilibria, ZrB₂-SiC

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