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Articles you may be interested inIn situ structure characterization of Pb(Yb1/2Nb1/2)O3-PbTiO3 crystals under high pressure-temperature Appl.Structure and properties of superelastic hard carbon phase created in fullerene-metal composites by high temperature-high pressure treatment

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The phase structure, dielectric, ferroelectric, and piezoelectric properties of (1−2x)BiScO3–xPbTiO3–xPbMg1/3Nb2/3O3 ceramics (x = 0.30‐0.46) were studied. It was found that an increase in x leads to a structural phase transition between the rhombohedral and tetragonal phase via an intermediate monoclinic phase and to a crossover from the nonergodic relaxor state to the ferroelectric one. It was proposed that at x > 0.42 the phase transition changes from second to first order. The assumption about the existence of a tricritical point on the phase diagram at x ≈ 0.42 with the enhanced dielectric response has been made. The observed structure‐property relationships of the studied solid solutions are discussed. It is shown that the solid solutions with x = 0.42 are characterized by the high piezoelectric parameters (d33 = 509 pC/N, d31 = −178 pC/N, dh = 153 pC/N), which makes possible their applications in sonar equipment.

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