by: Kevin Nadaud, Caroline Borderon, Raphaël Renoud, Micka Bah, Stephane Ginestar, Hartmut W. Gundel, Abstract: Dielectric, piezoelectric and electrostrictive properties of antiferroelectric lead zirconate thin films, elaborated by sol gel on alumina substrates, have been studied as a function of the driving field magnitude EAC. Measurement of the displacement shows that the strain for applied […]

by: Gianni Ferrero, Konstantin Astafiev, Erling Ringgaard, Leonardo Soares de Oliveira, Bhaskar Reddy Sudireddy, Astri Bjørnetun Haugen, Katarina Žiberna, Barbara Malič, Tadej Rojac Abstract: Solid solutions of BiFeO3 and BaTiO3 are promising lead-free piezoelectric materials, especially around the morphotropic phase boundary at 0.67BiFeO3-0.33BaTiO3. Still, these materials are challenged by phase instability and limited understanding of […]

by: Floriana Craciun, Francesco Cordero, Elisa Mercadelli, Nikola Ilic, Carmen Galassi, Carlo Baldisserri, Jelena Bobic, Paola Stagnaro, Giovanna Canu, Maria Teresa Buscaglia, Adis Dzunuzovic, Mirjana Vijatovic Petrovic Abstract: Ferroelectricity has made a huge impact on science and technology since Joseph Valasek (then a Ph.D. student at the University of Minnesota) discovered it in 1920, a […]

by Damien Brault, Philippe Boy, Franck Levassort, Guylaine Poulin-Vittrant, Claire Bantignies, Thien Hoang and Maxime Bavencoffe Abstract : A typical piezoelectric energy harvester is a bimorph cantilever with two layers of piezoelectric material on both sides of a flexible substrate. Piezoelectric layers of lead-based materials, typically lead zirconate titanate, have been mainly used due to […]

by: Danjela Kuscer, Oleksandr Noshchenko, Hana Uršič, Barbara Malič Abstract: An ink consisting of Pb(Zr0.53Ti0.47)O3 (PZT) particles with a median size of 170 nm and a narrow size distribution, in a dispersion of water and glycerol, and with a low viscosity and surface tension, was used for the fabrication of thick films by piezoelectric ink-jet […]

by: Fernando Rubio-Marcos, Juan José Romero, José Francisco Fernández and Pascal Marchet Abstract: Divalent transition metal oxide doping of lead-free (K,Na,Li)(Nb,Ta,Sb)O3 piezoceramics is studied. Two different behaviors were observed independently of the doping metal: at low concentrations, the tetragonal structure is preserved, while at a high doping level, the material becomes orthorhombic. For any given doping […]

by: Glen R. Fox, Claude A.P. Muller, Matthius Kuhn, Nava J. Setter, Nguyen Hong Ky, Hans G. Limberger Abstract: Miniature all-fiber phase modulators have been fabricated by integrating piezoelectric actuator coatings with telecommunication optical fibers. Evaporation and sputter deposition processes were used to grow thin film PbZrxTi1 – xO3 (PZT) and ZnO actuator structures directly on […]

by: Erling Ringgaard,Thom Wurlitzer & Wanda W. Wolny Abstract: The market for piezoceramic components is dominated by lead zirconate titanate (PZT) materials containing more than 60 wt% lead. Since lead is a toxic heavy metal, it has become a great concern how to eliminate the use of PZT by replacing it by non-harmful materials while maintaining […]

by: Fei Li, Andrew Bell, Dragan Damjanovic, Wook Jo, Zuo-Guang Ye, Shujun Zhang Abstract: Ferroelectricity has made a huge impact on science and technology since Joseph Valasek (then a Ph.D. student at the University of Minnesota) discovered it in 1920, a little longer than 100 years ago. Whereas Dr. Valasek’s original research was motivated by the […]