(Na0.5Bi0.5)TiO3 doped with 5 mol% BaTiO3 (NBT-BT0.05) nanopowder was prepared by sol-gel method. Structural and microstructural investigations revealed a powder crystallized in the Na0.5Bi0.5TiO3 rhombohedral phase form. Ceramics processed from this powder show good dielectric (epsilon(r) = 3940 and tan delta = 0.016) and piezoelectric characteristics (d(33) = 77 pC/N, k(p) = 0.091, epsilon(T)(33) = 1080 and Q(m) = 197.5). The as-obtained NBT-BT0.05 ceramic appears effective for piezoelectric resonator and high power applications. (C) 2011 Elsevier Ltd. All rights reserved.
Dielectric and piezoelectric behaviors of NBT-BT0.05 processed by sol-gel method
Capiani Claudio;Galassi Carmen
2012
Abstract
(Na0.5Bi0.5)TiO3 doped with 5 mol% BaTiO3 (NBT-BT0.05) nanopowder was prepared by sol-gel method. Structural and microstructural investigations revealed a powder crystallized in the Na0.5Bi0.5TiO3 rhombohedral phase form. Ceramics processed from this powder show good dielectric (epsilon(r) = 3940 and tan delta = 0.016) and piezoelectric characteristics (d(33) = 77 pC/N, k(p) = 0.091, epsilon(T)(33) = 1080 and Q(m) = 197.5). The as-obtained NBT-BT0.05 ceramic appears effective for piezoelectric resonator and high power applications. (C) 2011 Elsevier Ltd. All rights reserved.File in questo prodotto:
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