Synthesis and Dielectric Properties of Solution Sol‐Gel‐Derived 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 Ceramics

Palaniappan Ravindranathan; Sridhar Komarneni; Amar S. Bhalla; Rustum Roy

doi:10.1111/j.1151-2916.1991.tb04292.x

Synthesis and Dielectric Properties of Solution Sol‐Gel‐Derived 0.9Pb(Mg_1/3Nb_2/3)O₃–0.1PbTiO₃ Ceramics

Palaniappan Ravindranathan, Sridhar Komarneni, Amar S. Bhalla, Rustum Roy

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Abstract

A solution sol‐gel method has been developed to prepare 0.9Pb(Mg_1/3Nb_2/3)O₃‐0.1PbTiO₃ (0.9PMN‐0.1PT) ceramics. During the processing the gel first converted to cubic pyrochlore phase at a calcination temperature of 600°C followed by the formation of pure perovskite phase at 775°C. The ceramics sintered at 1250°C for 4 h showed ≈98% of the theoretical density. The room‐temperature dielectric constant of the pellets sintered at 1250°C showed a maximum value of 25035 at 1 kHz. Sintering studies at different temperatures revealed that the dielectric constant increased with increasing grain size in these ceramics.

Original language	English (US)
Pages (from-to)	2996-2999
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	74
Issue number	12
DOIs	https://doi.org/10.1111/j.1151-2916.1991.tb04292.x
State	Published - Dec 1991

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1991.tb04292.x

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title = "Synthesis and Dielectric Properties of Solution Sol‐Gel‐Derived 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 Ceramics",

abstract = "A solution sol‐gel method has been developed to prepare 0.9Pb(Mg1/3Nb2/3)O3‐0.1PbTiO3 (0.9PMN‐0.1PT) ceramics. During the processing the gel first converted to cubic pyrochlore phase at a calcination temperature of 600°C followed by the formation of pure perovskite phase at 775°C. The ceramics sintered at 1250°C for 4 h showed ≈98% of the theoretical density. The room‐temperature dielectric constant of the pellets sintered at 1250°C showed a maximum value of 25035 at 1 kHz. Sintering studies at different temperatures revealed that the dielectric constant increased with increasing grain size in these ceramics.",

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AU - Komarneni, Sridhar

AU - Bhalla, Amar S.

AU - Roy, Rustum

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AB - A solution sol‐gel method has been developed to prepare 0.9Pb(Mg1/3Nb2/3)O3‐0.1PbTiO3 (0.9PMN‐0.1PT) ceramics. During the processing the gel first converted to cubic pyrochlore phase at a calcination temperature of 600°C followed by the formation of pure perovskite phase at 775°C. The ceramics sintered at 1250°C for 4 h showed ≈98% of the theoretical density. The room‐temperature dielectric constant of the pellets sintered at 1250°C showed a maximum value of 25035 at 1 kHz. Sintering studies at different temperatures revealed that the dielectric constant increased with increasing grain size in these ceramics.

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Synthesis and Dielectric Properties of Solution Sol‐Gel‐Derived 0.9Pb(Mg_1/3Nb_2/3)O₃–0.1PbTiO₃ Ceramics

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