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Creator:: Patterson, Eric A. and Cann, David P.
Abstract:: The piezoelectric fatigue behavior of Pb-free ceramics based on solid solutions of Bi(Zn₀.₅Ti₀.₅)O₃-(Bi₀.5K₀.₅)TiO₃-(Bi₀.₅Na₀.₅)TiO₃ was characterized at 50 kV/cm after 10⁶ bipolar cycles. Ferroelectric compositions containing 2.5% Bi(Zn₀.₅Ti₀.₅)O₃ exhibited only minor losses in maximum strain (~10%). In compositions with 5% Bi(Zn₀.₅Ti₀.₅)O₃ that exhibit large electric field-induced strains, the electromechanical strain actually...
Resource Type:: Article
Full Text:: - (Bi0.5Na0.5)TiO3 Pb-free ceramics Eric A. Patterson and David P. Cann Citation: Appl. Phys. Lett. 101

Creator:: Patterson, Eric A., Kwon, Seunghwa, Huang, Chien-Chih, and Cann, David P.
Abstract:: The dielectric spectra of CaCu₃Ti₄O₁₂ is characterized by a large permittivity (εᵣ>10 000) with only a weak dependence on temperature over the temperature range 200–400 K. In this work, doping with 0.1–1.0 wt % ZrO₂ has been shown to dramatically reduce the dielectric loss. At 0.5 wt % ZrO₂, tan...
Resource Type:: Article
Full Text:: additions on the dielectric properties of CaCu3Ti4O12 Eric A. Patterson Department of Materials Science and

Creator:: Raengthon, Natthaphon, DeRose, Victoria J., Brennecka, Geoffrey L., and Cann, David P.
Abstract:: The defect mechanisms that underpin the high energy density dielectric 0.8BaTiO₃–0.2Bi(Zn₁/₂Ti₁/₂) O₃ were investigated. Characterization of the nominally stoichiometric composition revealed the presence of a Ti³⁺-related defect center, which is correlated with lower resistivities and an electrically heterogeneous microstructure. In compositions with 2 mol. % Ba-deficiency, a barium vacancy-oxygen vacancy...
Resource Type:: Article

Creator:: Paik, Hanjong, Hwang, Hosung, No, Kwangsoo, Kwon, Seunghwa, and Cann, David P.
Abstract:: The crystal structure and multiferroic properties of single-phase (Bi₀.₉La₀.₁)FeO₃–Ba(Fe₀.₅Nb₀.₅)O₃ ceramics were investigated. The rhombohedral-type structure of 1.0(Bi₀.₉La₀.₁)FeO₃) was transformed to a monoclinic-type structure for the 0.5(Bi₀.₉La₀.₁)FeO₃–0.5Ba(Fe₀.₅Nb₀.₅)O₃) composition. It shows the coexistence of ferroelectricity and magnetism at room temperature, represented by a high dielectric constant with ferroelectric hysteresis and clear magnetic...
Resource Type:: Article
Full Text:: „Bi0.9La0.1…FeO3–Ba„Fe0.5Nb0.5…O3 solid solution ceramics Hanjong Paik,a� Hosung Hwang, and Kwangsoo No

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