Effect of CuO additive on sintering and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics

Jia Mao Li; Tai Qiu; Chuan Gang Fan

Effect of CuO additive on sintering and microwave dielectric properties of Ca(Sm_0.5Nb_0.5)O₃ ceramics

Jia Mao Li, Tai Qiu, Chuan Gang Fan

College of Materials Science and Engineering

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

Abstract

Ca(Sm_0.5Nb_0.5)O₃ microwave dielectric ceramics with different contents of CuO sintering additive were prepared by conventional high-temperature solid state method, and the effects of CuO additive on the sintering, structure and microwave dielectric properties of Ca(Sm_0.5Nb_0.5)O₃ ceramics were studied. The results show that the densification of Ca(Sm_0.5Nb_0.5)O₃ grains could be improved and a reduction of sintering temperature (about 200°C) obtained by adding CuO into Ca(Sm_0.5Nb_0.5)O₃ ceramics. At 1350°C for 4 h, Ca(Sm_0.5Nb_0.5)O₃ ceramics with 1.5%(ω) CuO addition possess good microwave dielectric properties, relative dielectric constant ε_r 23.98, product quality and frequency Q×f 27754.5 GHz and temperature coefficient of resonant frequency τ_f -2.7×10^-6°C^-1.

Original language	English
Pages (from-to)	1043-1047
Number of pages	5
Journal	Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
Volume	12
Issue number	6
State	Published - Dec 2012

Keywords

Ca(SmNb)O
CuO
Microwave dielectric property
Sintering temperature

Cite this

@article{27fdd913b30944aaa34d91d74331cb91,

title = "Effect of CuO additive on sintering and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics",

abstract = "Ca(Sm0.5Nb0.5)O3 microwave dielectric ceramics with different contents of CuO sintering additive were prepared by conventional high-temperature solid state method, and the effects of CuO additive on the sintering, structure and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics were studied. The results show that the densification of Ca(Sm0.5Nb0.5)O3 grains could be improved and a reduction of sintering temperature (about 200°C) obtained by adding CuO into Ca(Sm0.5Nb0.5)O3 ceramics. At 1350°C for 4 h, Ca(Sm0.5Nb0.5)O3 ceramics with 1.5%(ω) CuO addition possess good microwave dielectric properties, relative dielectric constant εr 23.98, product quality and frequency Q×f 27754.5 GHz and temperature coefficient of resonant frequency τf -2.7×10-6°C-1.",

keywords = "Ca(SmNb)O, CuO, Microwave dielectric property, Sintering temperature",

author = "Li, {Jia Mao} and Tai Qiu and Fan, {Chuan Gang}",

year = "2012",

month = dec,

language = "英语",

volume = "12",

pages = "1043--1047",

journal = "Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering",

issn = "1009-606X",

publisher = "Science China Press",

number = "6",

}

TY - JOUR

T1 - Effect of CuO additive on sintering and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics

AU - Li, Jia Mao

AU - Qiu, Tai

AU - Fan, Chuan Gang

PY - 2012/12

Y1 - 2012/12

N2 - Ca(Sm0.5Nb0.5)O3 microwave dielectric ceramics with different contents of CuO sintering additive were prepared by conventional high-temperature solid state method, and the effects of CuO additive on the sintering, structure and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics were studied. The results show that the densification of Ca(Sm0.5Nb0.5)O3 grains could be improved and a reduction of sintering temperature (about 200°C) obtained by adding CuO into Ca(Sm0.5Nb0.5)O3 ceramics. At 1350°C for 4 h, Ca(Sm0.5Nb0.5)O3 ceramics with 1.5%(ω) CuO addition possess good microwave dielectric properties, relative dielectric constant εr 23.98, product quality and frequency Q×f 27754.5 GHz and temperature coefficient of resonant frequency τf -2.7×10-6°C-1.

AB - Ca(Sm0.5Nb0.5)O3 microwave dielectric ceramics with different contents of CuO sintering additive were prepared by conventional high-temperature solid state method, and the effects of CuO additive on the sintering, structure and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics were studied. The results show that the densification of Ca(Sm0.5Nb0.5)O3 grains could be improved and a reduction of sintering temperature (about 200°C) obtained by adding CuO into Ca(Sm0.5Nb0.5)O3 ceramics. At 1350°C for 4 h, Ca(Sm0.5Nb0.5)O3 ceramics with 1.5%(ω) CuO addition possess good microwave dielectric properties, relative dielectric constant εr 23.98, product quality and frequency Q×f 27754.5 GHz and temperature coefficient of resonant frequency τf -2.7×10-6°C-1.

KW - Ca(SmNb)O

KW - CuO

KW - Microwave dielectric property

KW - Sintering temperature

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M3 - 文章

AN - SCOPUS:84872242821

SN - 1009-606X

VL - 12

SP - 1043

EP - 1047

JO - Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering

JF - Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering

IS - 6

ER -

Effect of CuO additive on sintering and microwave dielectric properties of Ca(Sm_0.5Nb_0.5)O₃ ceramics

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Keywords

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