Infrared spectroscopy and microwave dielectric properties of ultra-low temperature firing (K0.5La0.5)MoO4 ceramics

Li Xia Pang; Di Zhou; Chang Long Cai; Wei Guo Liu

doi:10.1016/j.matlet.2012.10.082

Infrared spectroscopy and microwave dielectric properties of ultra-low temperature firing (K_0.5La_0.5)MoO₄ ceramics

Li Xia Pang
, Di Zhou
, Chang Long Cai
, Wei Guo Liu

Faculty of Electronic and Information Engineering

Xi'an Technological University

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

17 Scopus citations

Abstract

The (K_0.5La_0.5)MoO₄ ceramics with intrinsic ultra-low sintering temperature were prepared via the solid state reaction method. Pure monoclinic (K_0.5La_0.5)MoO ₄ phase was formed at around 660 °C. High performance of microwave dielectric properties were obtained in ceramic sample sintered at 680 °C with a permittivity of ∼10.3, a temperature coefficient of resonant frequency about -81 ppm/°C, and Qf value of 59,000 GHz. Complex dielectric spectra gained from the infrared spectra were extrapolated down to microwave range, and they were in good agreement with the measured microwave permittivity and dielectric losses. The novel (K_0.5La_0.5)MoO ₄ ceramic might be a good candidate for microwave devices application.

Original language	English
Pages (from-to)	36-38
Number of pages	3
Journal	Materials Letters
Volume	92
DOIs	https://doi.org/10.1016/j.matlet.2012.10.082
State	Published - 2013

Keywords

Ceramics
Dielectric properties
Infrared spectroscopy

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10.1016/j.matlet.2012.10.082

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title = "Infrared spectroscopy and microwave dielectric properties of ultra-low temperature firing (K0.5La0.5)MoO4 ceramics",

abstract = "The (K0.5La0.5)MoO4 ceramics with intrinsic ultra-low sintering temperature were prepared via the solid state reaction method. Pure monoclinic (K0.5La0.5)MoO 4 phase was formed at around 660 °C. High performance of microwave dielectric properties were obtained in ceramic sample sintered at 680 °C with a permittivity of ∼10.3, a temperature coefficient of resonant frequency about -81 ppm/°C, and Qf value of 59,000 GHz. Complex dielectric spectra gained from the infrared spectra were extrapolated down to microwave range, and they were in good agreement with the measured microwave permittivity and dielectric losses. The novel (K0.5La0.5)MoO 4 ceramic might be a good candidate for microwave devices application.",

keywords = "Ceramics, Dielectric properties, Infrared spectroscopy",

author = "Pang, \{Li Xia\} and Di Zhou and Cai, \{Chang Long\} and Liu, \{Wei Guo\}",

year = "2013",

doi = "10.1016/j.matlet.2012.10.082",

language = "英语",

volume = "92",

pages = "36--38",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Infrared spectroscopy and microwave dielectric properties of ultra-low temperature firing (K0.5La0.5)MoO4 ceramics

AU - Pang, Li Xia

AU - Zhou, Di

AU - Cai, Chang Long

AU - Liu, Wei Guo

PY - 2013

Y1 - 2013

N2 - The (K0.5La0.5)MoO4 ceramics with intrinsic ultra-low sintering temperature were prepared via the solid state reaction method. Pure monoclinic (K0.5La0.5)MoO 4 phase was formed at around 660 °C. High performance of microwave dielectric properties were obtained in ceramic sample sintered at 680 °C with a permittivity of ∼10.3, a temperature coefficient of resonant frequency about -81 ppm/°C, and Qf value of 59,000 GHz. Complex dielectric spectra gained from the infrared spectra were extrapolated down to microwave range, and they were in good agreement with the measured microwave permittivity and dielectric losses. The novel (K0.5La0.5)MoO 4 ceramic might be a good candidate for microwave devices application.

AB - The (K0.5La0.5)MoO4 ceramics with intrinsic ultra-low sintering temperature were prepared via the solid state reaction method. Pure monoclinic (K0.5La0.5)MoO 4 phase was formed at around 660 °C. High performance of microwave dielectric properties were obtained in ceramic sample sintered at 680 °C with a permittivity of ∼10.3, a temperature coefficient of resonant frequency about -81 ppm/°C, and Qf value of 59,000 GHz. Complex dielectric spectra gained from the infrared spectra were extrapolated down to microwave range, and they were in good agreement with the measured microwave permittivity and dielectric losses. The novel (K0.5La0.5)MoO 4 ceramic might be a good candidate for microwave devices application.

KW - Ceramics

KW - Dielectric properties

KW - Infrared spectroscopy

UR - https://www.scopus.com/pages/publications/84871379046

U2 - 10.1016/j.matlet.2012.10.082

DO - 10.1016/j.matlet.2012.10.082

M3 - 文章

AN - SCOPUS:84871379046

SN - 0167-577X

VL - 92

SP - 36

EP - 38

JO - Materials Letters

JF - Materials Letters

ER -

Infrared spectroscopy and microwave dielectric properties of ultra-low temperature firing (K_0.5La_0.5)MoO₄ ceramics

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Keywords

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