Piezoelectric ceramics are essential for electronic industries due to the capabilities of converting mechanical stresses to an electric field, or vice versa. Three-dimensional printing provides the shaping flexibility, however, piezoelectric properties should be further improved. In this work, barium titanate is manufactured by extrusion freeforming derived from milled precursors. The pure tetragonal phase is formed at 950 °C, which is lower than conventionally required temperature for un-milled counterparts. Upon extrusion, a self-supporting green part could be obtained. Moreover, post processing is necessary for the solid-state reaction and particle sintering to achieve dense structures. It is observed that sintered ceramics reach the maximum density of 5.66 g/cm³ which exhibits excellent piezoelectric and dielectric properties of 420 pC/N and 4380 at 1 kHz, respectively. This printing technique from milled powders is a promising approach to enable the mass production and customization of piezoelectric devices, a cost reduction is therefore foreseen.

压电陶瓷由于具有将机械应力转换为电场的能力，反之亦然，因此对于电子工业至关重要。三维印刷提供了成型灵活性，但是，压电性能应进一步提高。在这项工作中，钛酸钡是通过挤压自由成形法制得的，这种挤压成形是由碾磨的前体衍生而来的。纯四方相在950°C时形成，该温度低于未铣削对应物的常规所需温度。在挤出时，可以获得自支撑的生坯部件。此外，后处理对于固态反应和颗粒烧结以实现致密结构是必需的。观察到烧结陶瓷的最大密度达到5.66 g / cm ³它在1 kHz时分别具有420 pC / N和4380的优异压电和介电性能。研磨粉的这种印刷技术是使压电装置能够大量生产和定制的一种有前途的方法，因此可以预期降低成本。