<abstract xmlns="http://www.w3.org/1999/xhtml"> Zn0.7Co0.3(Ti1-xSnx)Nb2O8 (x = 0.1, 0.15, 0.2, 0.25, 0.3, 0.35) microwave ceramics were prepared by traditional solidstate reaction method. The influences of Sn substituted for Ti on the phase constitution, crystal structure and microwave dielectric properties of Zn0.7Co0.3(Ti1-xSnx)Nb2O8 ceramics were discussed. The XRD patterns revealed the main phase of ZnTiNb2O8 and little content of Zn0.17Ti0.5Nb0.33O2 secondary phase. With further substitution of Sn, the lattice constant, volume and apparent density of the ceramics increased, the ceramic structure reached a maximal compactness at x = 0.2 which was shown on SEM. Tremendous improvement of Q × f and a declining trend of Ɛr and τf were obtained with increasing x value. Appropriate substitution value (x = 0.10) would ensure excellent microwave dielectric properties (Ɛr = 34.1, Q × f = 40562 GHz, τf =-5 ppm/°C) of the ceramics sintered at 1080 °C. </abstract>

Zn0.7Co0.3(Ti1-xSnx)Nb2O8 (x = 0.1, 0.15, 0.2, 0.25, 0.3, 0.35) microwave ceramics were prepared by traditional solidstate reaction method. The influences of Sn substituted for Ti on the phase constitution, crystal structure and microwave dielectric properties of Zn0.7Co0.3(Ti1-xSnx)Nb2O8 ceramics were discussed. The XRD patterns revealed the main phase of ZnTiNb2O8 and little content of Zn0.17Ti0.5Nb0.33O2 secondary phase. With further substitution of Sn, the lattice constant, volume and apparent density of the ceramics increased, the ceramic structure reached a maximal compactness at x = 0.2 which was shown on SEM. Tremendous improvement of Q × f and a declining trend of Ɛr and τf were obtained with increasing x value. Appropriate substitution value (x = 0.10) would ensure excellent microwave dielectric properties (Ɛr = 34.1, Q × f = 40562 GHz, τf =-5 ppm/°C) of the ceramics sintered at 1080 °C.

Preparation and characterization of (Co0:3Zn0:7)(Ti1–xSnx)Nb2O8 microwave dielectric ceramics

Materials Science-Poland

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Preparation and characterization of (CoZn)(TiSn)NbO microwave dielectric ceramics

Zn0.7Co0.3(Ti1-xSnx)Nb2O8 (x = 0.1, 0.15, 0.2, 0.25, 0.3, 0.35) microwave ceramics were prepared by traditional solidstate reaction method. The influences of...

Preparation and characterization of (Co_0:3Zn_0:7)(Ti_1–xSn_x)Nb₂O₈ microwave dielectric ceramics

Published Online: Jul 26, 2017

Page range: 405 - 411

Received: Oct 19, 2016

Accepted: Feb 19, 2017

DOI: https://doi.org/10.1515/msp-2017-0042

Keywords
microwave dielectric ceramics, (Co0.3Zn0.7)(Ti1-xSnx)Nb2O8, ixiolite structure

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Preparation and characterization of (Co0:3Zn0:7)(Ti1–xSnx)Nb2O8 microwave dielectric ceramics

Published Online: Jul 26, 2017

Page range: 405 - 411

Received: Oct 19, 2016

Accepted: Feb 19, 2017

DOI: https://doi.org/10.1515/msp-2017-0042

Keywordsmicrowave dielectric ceramics, (Co0.3Zn0.7)(Ti1-xSnx)Nb2O8, ixiolite structure

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Preparation and characterization of (Co_0:3Zn_0:7)(Ti_1–xSn_x)Nb₂O₈ microwave dielectric ceramics

Keywords
microwave dielectric ceramics, (Co0.3Zn0.7)(Ti1-xSnx)Nb2O8, ixiolite structure