Colloidal processing has demonstrated its suitability to produce complex-shaped ceramic parts with tailored microstructure. Less effort has been devoted toward processing of metal powders and ceramic-metal composites because of the high density and complex surface behaviour of metal powders. By combining different shaping methods it is possible to produce complex 3-D bodies as well as single or multilayer coatings, self-sustaining films and laminates In this work, the colloidal processing of Ni powders and M-Al_2O_3 and Ni-ZrO_2 composites is studied considering the rheological behavior of the suspensions and specific processing parameters that allow manufacturing complex 2-D and 3-D structures with layers having controlled thickness. Innovative processing strategies resulting from the combination of conventional consolidation mechanisms and shaping routes are explored, such as the production of bulk bodies and layered materials by slip casting of metal and ceramic mixtures, the fabrication of substrates by tape casting, and the application of coatings by dipping.
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