<abstract xmlns="http://www.w3.org/1999/xhtml"> Sr5Ta4TiO17 ceramics was processed via solid state mixed oxide sintering route. X-ray diffraction revealed single phase formation of Sr5Ta4TiO17 ceramics that crystallized into an orthorhombic crystal structure with a space group Pnnm with lattice parameters of a = 5.681 Å, b = 32.542 Å and c = 3.968 Å, refined by the least squares method. The unit cell density (ρth) was 6.71 g/cm3. The microstructure consisted of plate-like grains and the average size was increased from 2 μm to 5 μm with an increase in sintering temperature from 1450 °C to 1575 °C. Optimum microwave dielectric properties, i.e. єr ~ 66,Qufo ~ 8500 GHz and τf ~ 180 ppm/°C, were achieved for Sr5TaTiO17 ceramics sintered at 1550 °C for 4 h. </abstract>

Sr5Ta4TiO17 ceramics was processed via solid state mixed oxide sintering route. X-ray diffraction revealed single phase formation of Sr5Ta4TiO17 ceramics that crystallized into an orthorhombic crystal structure with a space group Pnnm with lattice parameters of a = 5.681 Å, b = 32.542 Å and c = 3.968 Å, refined by the least squares method. The unit cell density (ρth) was 6.71 g/cm3. The microstructure consisted of plate-like grains and the average size was increased from 2 μm to 5 μm with an increase in sintering temperature from 1450 °C to 1575 °C. Optimum microwave dielectric properties, i.e. єr ~ 66,Qufo ~ 8500 GHz and τf ~ 180 ppm/°C, were achieved for Sr5TaTiO17 ceramics sintered at 1550 °C for 4 h.

Processing and microwave dielectric properties of Sr5Ta4TiO17 ceramics

Materials Science-Poland

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Processing and microwave dielectric properties of SrTaTiO ceramics

Sr5Ta4TiO17 ceramics was processed via solid state mixed oxide sintering route. X-ray diffraction revealed single phase formation of Sr5Ta4TiO17 ceramics that...

Processing and microwave dielectric properties of Sr₅Ta₄TiO₁₇ ceramics

Published Online: Mar 20, 2018

Page range: 767 - 772

Received: Jan 05, 2017

Accepted: Sep 24, 2017

DOI: https://doi.org/10.1515/msp-2017-0085

Keywords
electron microscopy, sintering, microwave ceramics

© 2018

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

Processing and microwave dielectric properties of Sr5Ta4TiO17 ceramics

Published Online: Mar 20, 2018

Page range: 767 - 772

Received: Jan 05, 2017

Accepted: Sep 24, 2017

DOI: https://doi.org/10.1515/msp-2017-0085

Keywordselectron microscopy, sintering, microwave ceramics

© 2018

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

Processing and microwave dielectric properties of Sr₅Ta₄TiO₁₇ ceramics

Keywords
electron microscopy, sintering, microwave ceramics