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3D printing via the direct ink writing technique of ceramic pastes from typical formulations used in traditional ceramics industry

机译：通过传统陶瓷行业中常用配方的陶瓷浆料的直接墨水书写技术进行3D打印

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摘要

This research presents an additive manufacturing study of a ceramic paste typically used in the ceramic industry. The 3D printing technique used was the direct ink writing (DIW) method, which is an extrusion based process. Several formulations were built with different volumetric fractions of solids with respect to water, all between 50% and 56%. Two types of additives (sodium silicate and sodium polyacrylate) were used with concentrations between 0.2 and 0.8 wt%. The printable pieces were those that were able to maintain the shape, have been sintered after the printing process and subjected to different tests. Dimension stability tests were conducted in order to determine the contraction after the air drying and fired process. Scanning electron microscopy, density, compression strength, x-ray diffraction, and rheology experiments were conducted over these successful formulations. Weibull analysis in the compression tests were made over the sintered samples as well.
机译：这项研究提出了陶瓷工业中通常使用的陶瓷浆料的增材制造研究。使用的3D打印技术是直接墨水书写（DIW）方法，这是基于挤出的过程。用相对于水的固体的不同体积分数构建了几种制剂，所有固体的体积分数均在50％至56％之间。使用两种添加剂（硅酸钠和聚丙烯酸钠），其浓度在0.2至0.8 wt％之间。可印刷件是那些能够保持形状的部件，在印刷过程之后已进行了烧结，并经过了不同的测试。为了确定风干和焙烧过程后的收缩，进行了尺寸稳定性测试。在这些成功的配方上进行了扫描电子显微镜，密度，抗压强度，X射线衍射和流变学实验。压缩试验中的威布尔分析也对烧结样品进行。

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