HEINTZ, Jean-Marc; DUGUEY, Sonia; LEBOURGEOIS, Richard; GANNE, Jean-Pierre

doi:10.1016/j.jeurceramsoc.2006.05.018

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HEINTZ, Jean-Marc
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DUGUEY, Sonia
Temex Ceramics

LEBOURGEOIS, Richard
Thales Research and Technology [Palaiseau]

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Journal of the European Ceramic Society. 2007, vol. 27 (2-3), p. 1087-1091

Elsevier

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The objective of this paper was to determine the dielectric properties of AgNb1/2Ta1/2O3 (referenced ANT22) sintered at low temperature without any addition or substitution. Hot-pressing was performed to decrease the sintering temperature. By this way, high density were achieved. The resulting samples were compared with conventionally sintered ANT22 and with copper oxide added ANT22. The highest densities were obtained for the hot-pressed samples compared with the CuO added ones. We concluded that the dielectric losses of the hot-pressed and copper oxide added ANT22 were very similar at high frequency (f > 1 MHz), indicating that copper oxide does not degrade the ANT22 properties. Conversely, low frequency dielectric properties were different, with a strong dielectric relaxation for the hot-pressed samples.< Leer menos

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Hot-pressing

Dielectric properties

Perovskites

Capacitors

ANT

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High frequency dielectric properties of hot-pressed Ag(NbxTa1−x)O3 solid solutions

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