Abstract
In order to select the appropriate crucible material for Fe–TiC composite alloy processing, Al2O3, CaZrO3, and MgO-stabilized ZrO2 ceramic substrates were tested for interaction with a liquid Fe–TiC alloy at 1650 °C. The sessile drop method under protective gas was applied to conduct the experiment. The measured contact angle of Fe–TiC alloy followed the tendency of MgO-stabilized ZrO2˃CaZrO3˃Al2O3. After investigations, the Al2O3 substrate was strongly corroded by the liquid Fe–TiC alloy. The CaZrO3 substrate showed a smooth and non-corroded interface after the interaction. Reactions products TiOx and MgTiOx were detected between alloy and Mg–ZrO2 substrate. Obtained results were discussed under consideration of SEM/EDX analysis, which was conducted on the cross-section samples of metal/ceramic compound and on the top surface of the solidified Fe–TiC alloy; and of thermodynamic simulations of the Fe–TiC alloy interaction with the investigated substrates.
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