Abstract
Anti-static zirconia ceramic with perfect mechanical properties was prepared by carburization treatment method. The influence of carburization temperature and time on the surface resistivity and Vickers hardness was investigated. It shows that after carburization the surface resistivity was decreased, while Vickers hardness was enhanced for the ZrO2 ceramics. After carburization at 1450°C for 3 h, the surface resistivity of ZrO2 ceramic could be reduced to 10 W/□ and Vickers hardness could be enhanced slightly to 14 GPa; the surface modification layer was about 3 μm in thickness; and of which the carbon content deceased from the surface towards the inner. It was verified by XPS that carbon in the inner portion of carburization layer existed as elemental status, while on the surface layer as element C and carbide ZrC0.85, which might facilitate the anti-static property of the ZrO2 ceramics.
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