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Inkjet printing of piezoelectric lead magnesium niobate-lead titanate thick films
Keywords: inkjet, PMN-PT, piezoelectric thick film
This study shows the fabrication of lead magnesium niobate-lead titanate (PMN-PT) thick-films by inkjet printing on ceramic substrates. PMN-PT powder, prepared by mechanochemical synthesis, is dispersed in diethylene glycol monobutyl ether (BC) using a three roll mill to form a high-viscosity paste. For printing, the paste is thinned to a low-viscosity ink. Small amounts of ethyl cellulose in the ink prevent sedimentation. A small amount of glass particles is added to the paste to improve adhesion on the substrate surface. A multiple step inkjet-printing process forming homogeneous layers is introduced. After sintering, electrical measurements are conducted. The measurements reveal the piezoelectric behavior of the printed film.
Andreas Rathjen, Research Associate
Helmut Schmidt University / University of the Federal Armed Forces Hamburg - Dept. of Mechanical Engineering, Institute of Automation Technology
Hamburg, Hamburg
Germany


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