Near Net Shape Fabrication Of Pmn Scaffolds

Abstract

Solid free form fabrication techniques are commonly employed in near net shaping of ceramics especially in the manufacture of microelectronics. Lead magnesium niobate (PMN) is an important relaxor ferroelectric material with perovksite structure used in the production of these multilayer ceramic devices. In this study two dimensional PMN arrays and three dimensional periodic structures were produced by robocasting which is a direct writing technique. Aqueous colloidal gels have been formulated for use as ink in solid freeform fabrication process. Results showed that complex PMN shapes having rod size down to 100 pm can be successfully produced by robocasting process to be used in microelectronic applications.