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BaTiO3 ceramics were doped with acceptor metallic ions (Co, Mn, Fe) and co-doped with Co and Nb. Piezoelectric ceramics were prepared using conventional solid-state reaction. Addition of Li2O sintering aid allows obtaining dense ceramics at low sintering temperature. Doping with Co acceptor leads to significant improve of piezoelectric properties but induce distorted and shifted hysteresis loop due...
Space borne observation requires extremely high resolution systems with large dimensions. The design of such systems implies associating sensing and actuation systems to insure a highly stable positioning of optical components. However, the currently used PZT materials for piezoelectric actuation show strongly diminished strain at cryogenic temperatures. This work explores the performances of PMN-xPT...
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