Microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO2 ceramics

Hsun Chin Chen; Ming Hang Weng; Chen I. Hung; Mau Phon Houng

doi:10.1143/JJAP.43.2564

Microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO₂ ceramics

Hsun Chin Chen, Ming Hang Weng, Chen I. Hung, Mau Phon Houng

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO² ceramics (x = 0.005, 0.01, 0.03, and 0.05) prepared by a conventional solid-state reaction method and sintered at temperatures from 1280°C to 1400°C were investigated. Some minor phases were observed in (1 - x)MgO·xBaO·TiO₂ under different sintering conditions. The dielectric constant and Q × f of the specimens increased with an increase in x. In the (1 - x)MgO·xBaO·TiO ₂ system, the temperature coefficient of resonant frequency could be controlled by varying x and can lead to a zero τ_f. For practical applications, 0.97MgO·0.03BaO·TiO₂ ceramics sintered at 1320°C have excellent microwave dielectric properties: ε_r = 20.6, Q × f = 32600 GHz and τ_f = +4.47ppm/°C.

Original language	English
Pages (from-to)	2564-2567
Number of pages	4
Journal	Japanese Journal of Applied Physics
Volume	43
Issue number	5 A
DOIs	https://doi.org/10.1143/JJAP.43.2564
Publication status	Published - 2004 May

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

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title = "Microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO2 ceramics",

abstract = "The microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO2 ceramics (x = 0.005, 0.01, 0.03, and 0.05) prepared by a conventional solid-state reaction method and sintered at temperatures from 1280°C to 1400°C were investigated. Some minor phases were observed in (1 - x)MgO·xBaO·TiO2 under different sintering conditions. The dielectric constant and Q × f of the specimens increased with an increase in x. In the (1 - x)MgO·xBaO·TiO 2 system, the temperature coefficient of resonant frequency could be controlled by varying x and can lead to a zero τf. For practical applications, 0.97MgO·0.03BaO·TiO2 ceramics sintered at 1320°C have excellent microwave dielectric properties: εr = 20.6, Q × f = 32600 GHz and τf = +4.47ppm/°C.",

author = "Chen, {Hsun Chin} and Weng, {Ming Hang} and Hung, {Chen I.} and Houng, {Mau Phon}",

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T1 - Microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO2 ceramics

AU - Chen, Hsun Chin

AU - Weng, Ming Hang

AU - Hung, Chen I.

AU - Houng, Mau Phon

PY - 2004/5

Y1 - 2004/5

N2 - The microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO2 ceramics (x = 0.005, 0.01, 0.03, and 0.05) prepared by a conventional solid-state reaction method and sintered at temperatures from 1280°C to 1400°C were investigated. Some minor phases were observed in (1 - x)MgO·xBaO·TiO2 under different sintering conditions. The dielectric constant and Q × f of the specimens increased with an increase in x. In the (1 - x)MgO·xBaO·TiO 2 system, the temperature coefficient of resonant frequency could be controlled by varying x and can lead to a zero τf. For practical applications, 0.97MgO·0.03BaO·TiO2 ceramics sintered at 1320°C have excellent microwave dielectric properties: εr = 20.6, Q × f = 32600 GHz and τf = +4.47ppm/°C.

AB - The microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO2 ceramics (x = 0.005, 0.01, 0.03, and 0.05) prepared by a conventional solid-state reaction method and sintered at temperatures from 1280°C to 1400°C were investigated. Some minor phases were observed in (1 - x)MgO·xBaO·TiO2 under different sintering conditions. The dielectric constant and Q × f of the specimens increased with an increase in x. In the (1 - x)MgO·xBaO·TiO 2 system, the temperature coefficient of resonant frequency could be controlled by varying x and can lead to a zero τf. For practical applications, 0.97MgO·0.03BaO·TiO2 ceramics sintered at 1320°C have excellent microwave dielectric properties: εr = 20.6, Q × f = 32600 GHz and τf = +4.47ppm/°C.

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

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ER -

Microstructures and microwave dielectric properties of (1 - x)MgO·xBaO·TiO₂ ceramics

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