Article ID Journal Published Year Pages File Type
7895489 Corrosion Science 2014 8 Pages PDF
Abstract
Corrosion kinetics and corrosion mechanisms of BN-ZrO2-SiC composites with different ZrO2 contents of 10-40 vol.% have been investigated in molten steel. The chemical reactions between dissolved oxygen in molten steel and non-oxide components of BN and SiC are key factors of corrosion process. High ZrO2 content is beneficial to the formation of a ZrO2-rich corrosion layer, which restrains molten steel from further penetrating into ceramic matrix. Corrosion kinetic obeys a nearly parabolic law, and the corrosion rate is retarded by adding ZrO2. Therefore, the addition of ZrO2 is beneficial to the enhancement of corrosion resistance against molten steel.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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