Effect of Li2CO3 on the microwave dielectric properties of 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 ceramics

Ling Liu; Yong Bao Feng; Tai Qiu

Effect of Li₂CO₃ on the microwave dielectric properties of 0.94Mg₂SiO₄-0.06Ca_0.9Sr_0.1TiO₃ ceramics

College of Materials Science and Engineering

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

Abstract

The effects of Li₂CO₃ on sintering and microwave dielectric properties of 0.94Mg₂SiO₄-0.06Ca_0.9Sr_0.1TiO₃ ceramics synthesized by a traditional solid-state reaction method were investigated. The results show that the addition of Li₂CO₃ did not change the phase of ceramics. Appropriate Li₂CO₃ addition could accelerate the sintering process, which could lower the sintering temperature from 1440℃ to 1355℃. Moreover, the addition of Li₂CO₃ improve the microwave dielectric properties and the Q×f increases apparently. The decrease in density and deterioration of Q×f were observed in the samples with excessive Li₂CO₃. The optimal microwave dielectric properties: ε_r=7.96, Q×f=96409 GHz (f=14.571 GHz), τ_f=+4.62 ppm/℃ were obtained for 0.94Mg₂SiO₄-0.06Ca_0.9Sr_0.1TiO₃ doped with 0.50wt% Li₂CO₃ sintered at 1355℃ for 3 h.

Original language	English
Pages (from-to)	430-434
Number of pages	5
Journal	Rengong Jingti Xuebao/Journal of Synthetic Crystals
Volume	44
Issue number	2
State	Published - 1 Feb 2015

Keywords

CaSrTiO
Dielectric property
LiCO
MgSiO

Cite this

@article{0c0175fa29d947d0b43a33bfc802d62c,

title = "Effect of Li2CO3 on the microwave dielectric properties of 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 ceramics",

abstract = "The effects of Li2CO3 on sintering and microwave dielectric properties of 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 ceramics synthesized by a traditional solid-state reaction method were investigated. The results show that the addition of Li2CO3 did not change the phase of ceramics. Appropriate Li2CO3 addition could accelerate the sintering process, which could lower the sintering temperature from 1440℃ to 1355℃. Moreover, the addition of Li2CO3 improve the microwave dielectric properties and the Q×f increases apparently. The decrease in density and deterioration of Q×f were observed in the samples with excessive Li2CO3. The optimal microwave dielectric properties: εr=7.96, Q×f=96409 GHz (f=14.571 GHz), τf=+4.62 ppm/℃ were obtained for 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 doped with 0.50wt% Li2CO3 sintered at 1355℃ for 3 h.",

keywords = "CaSrTiO, Dielectric property, LiCO, MgSiO",

author = "Ling Liu and Feng, {Yong Bao} and Tai Qiu",

year = "2015",

month = feb,

day = "1",

language = "英语",

volume = "44",

pages = "430--434",

journal = "Rengong Jingti Xuebao/Journal of Synthetic Crystals",

issn = "1000-985X",

publisher = "Chinese Ceramic Society",

number = "2",

}

TY - JOUR

T1 - Effect of Li2CO3 on the microwave dielectric properties of 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 ceramics

AU - Liu, Ling

AU - Feng, Yong Bao

AU - Qiu, Tai

PY - 2015/2/1

Y1 - 2015/2/1

N2 - The effects of Li2CO3 on sintering and microwave dielectric properties of 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 ceramics synthesized by a traditional solid-state reaction method were investigated. The results show that the addition of Li2CO3 did not change the phase of ceramics. Appropriate Li2CO3 addition could accelerate the sintering process, which could lower the sintering temperature from 1440℃ to 1355℃. Moreover, the addition of Li2CO3 improve the microwave dielectric properties and the Q×f increases apparently. The decrease in density and deterioration of Q×f were observed in the samples with excessive Li2CO3. The optimal microwave dielectric properties: εr=7.96, Q×f=96409 GHz (f=14.571 GHz), τf=+4.62 ppm/℃ were obtained for 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 doped with 0.50wt% Li2CO3 sintered at 1355℃ for 3 h.

AB - The effects of Li2CO3 on sintering and microwave dielectric properties of 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 ceramics synthesized by a traditional solid-state reaction method were investigated. The results show that the addition of Li2CO3 did not change the phase of ceramics. Appropriate Li2CO3 addition could accelerate the sintering process, which could lower the sintering temperature from 1440℃ to 1355℃. Moreover, the addition of Li2CO3 improve the microwave dielectric properties and the Q×f increases apparently. The decrease in density and deterioration of Q×f were observed in the samples with excessive Li2CO3. The optimal microwave dielectric properties: εr=7.96, Q×f=96409 GHz (f=14.571 GHz), τf=+4.62 ppm/℃ were obtained for 0.94Mg2SiO4-0.06Ca0.9Sr0.1TiO3 doped with 0.50wt% Li2CO3 sintered at 1355℃ for 3 h.

KW - CaSrTiO

KW - Dielectric property

KW - LiCO

KW - MgSiO

UR - http://www.scopus.com/inward/record.url?scp=84928388459&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:84928388459

SN - 1000-985X

VL - 44

SP - 430

EP - 434

JO - Rengong Jingti Xuebao/Journal of Synthetic Crystals

JF - Rengong Jingti Xuebao/Journal of Synthetic Crystals

IS - 2

ER -

Effect of Li₂CO₃ on the microwave dielectric properties of 0.94Mg₂SiO₄-0.06Ca_0.9Sr_0.1TiO₃ ceramics

Abstract

Keywords

Other files and links

Fingerprint

Cite this