Abstract In this research, kaolinite clay from Colombia is employed as a raw material for the additive manufacturing of diverse samples using the Direct Ink Writing (DIW) technique in which… Click to show full abstract
Abstract In this research, kaolinite clay from Colombia is employed as a raw material for the additive manufacturing of diverse samples using the Direct Ink Writing (DIW) technique in which a filament of the printing material is extruded from a nozzle. DIW is a simple and inexpensive technology suitable for adaption to large-scale production. Different samples fabricated from clays were manufactured with water to clay ratios (W/C) of between 0.65 and 0.69. Cylinders for compression tests were printed and tested after being cured for one day at room temperature and then exposed to 1100 °C for 1 h. Compression, thermal stability, density tests and Weibull analysis are presented. Scanning electron microscopy images showed no significant macro or micro defects after manufacturing, and x-ray diffraction and Rietveld quantitative analysis revealed different phases. Rheological behavior and several process parameters are also shown.
               
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