Ink-jet printing for ceramic functional coating

Abstract

The interest of functional ceramics coatings based on low cost and flexible manufacturing has been pushed up by the effectiveness shown by the Chemical Solution Deposition (MOD-CSD) of metal-organic salts route, based habitually on the use of spin coating, deep coating or slot die techniques previous to the thermal treatment to achieve the decomposition of the starting salts. The possibility to implement effective Drop on Demand (DoD) systems in the manufacturing process allows a more efficient way to homogeneously extend the precursor solution over the substrate, being so able to control the thickness of the ceramic coating among other manufacturing advantages as control of solvent evaporation. In this work we report on our experiments concerning ink jet coating of functional complex ceramics as LSMO over single crystalline substrates by using a single nozzle piezolectric dispenser. Characterization of both the rheological properties of the developed ink, and the resulting coating by XR diffiaction, SEM, and rrmgnetic behavior are reported.