Processing and characterization of PbTiO3 thick films on alumina substrates

• Published in: Journal of electroceramics Vol. 8; no. 3; pp. 215 - 219
• Main Authors: SIMON, L, LE DREN, S, GONNARD, P, PIERRE, G
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.09.2002; Springer Nature B.V
• Subjects: Ceramics; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Dielectric properties of solids and liquids; Dielectrics, piezoelectrics, and ferroelectrics and their properties; Exact sciences and technology; Grain size; Permittivity (dielectric function); Physics; Annealing; Inorganic compounds; Calcium additions; Lead titanates; Transition element compounds; Thick films; Doping; Elasticity; Experimental study; Grain size distribution; Thickness; Piezoelectricity; Microstructure; Permittivity
• ISSN: 1385-3449; 1573-8663
• DOI: 10.1023/A:1020846000595

Calcium modified lead titanate (PT) thick films (thicknesses from 50 to 130 μm) are deposited by screen-printing on alumina substrates. First, the influence of the Ca-doping process and of the grain size distribution on the film quality and the piezoelectric coefficients is studied. The permittivity and charge coefficient d^sub 33^ values of the films are compared with bulk ceramics ones. The consequences of very low coupling planar factors for PT are discussed. Piezoelectric and elastic properties are calculated with the help of a plane wave model which takes into account the three layers: substrate, electrodes and PT layer.[PUBLICATION ABSTRACT]