Abstract
To passivate a barium titanate (BaTiO 3) ceramic powder surface from Ba 2+ ion leaching in water, passivation agent layer (PAL) was formed by drying the slurry after adding a commercial polymeric dispersant. By following the several characteristic steps of actual MLCC production process, slip and green properties were compared for two different polymer-adding modes; one is the PAL and the other is the conventional dispersant mode. Compared to the conventional dispersant adding method, PAL mode was the only effective way in reducing the amount of Ba 2+ leaching. However, slip viscosity and green body properties were not a function of adding mode but a function of dispersant itself, which means using PAL did not deteriorate any of slip and green properties of BaTiO 3.
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