The effect of dry axial compaction process parameters on physicomechanical properties of ceramic composite material ZTA (Al2O3–ZrO2, ZrO2 > 20 wt.%) with a different content of nanosize ZrO2 powder (range 0 – 4 wt.%) is studied. The dependence of compact density is determined, and also the main physicomechanical properties of sintered specimens on compaction conditions, and linear specimen shrinkage on compaction pressure in the pressing direction and radial direction. It is revealed that an increase in the amount of nanosize ZrO2 in an original charge facilitates an increase in compact and sintered specimen density, and a reduction in specimen linear shrinkage during firing. Comparative evaluation is carried out under industrial production conditions for wear resistance of ceramic specimens based on Al2O3 and ZrO2 with a different ZrO2 content, and also addition of nanosize ZrO2.
Refractories and Industrial Ceramics – Springer Journals
Published: Mar 13, 2014
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