Microwave dielectric properties of (Y0.99R0.01)2 Ti2O7(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) ceramics

Yuan Xiao; Zhe Fei Wang; Zhi Jie Gong; Li Xi Wang; Qi Tu Zhang

Microwave dielectric properties of (Y_0.99R_0.01)₂ Ti₂O₇(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) ceramics

Yuan Xiao, Zhe Fei Wang, Zhi Jie Gong, Li Xi Wang, Qi Tu Zhang

College of Materials Science and Engineering

Nanjing Tech University

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

1 Scopus citations

Abstract

The (Y_0.99R_0.01)₂ Ti₂O₇(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) microwave dielectric ceramics were prepared by conventional solid-state route. The effects of Pr, Tb, Ho, Er, Tm, Yb and Lu doping on the phase composition, sintering characteristics and microwave dielectric properties of Y₂Ti₂O₇ ceramics were investigated. The results indicated that the doping on the A-site improved the microwave dielectric properties of Y₂Ti₂O₇ ceramics. The prepared samples maintain a single pyrochlore phase and show Y₂Ti₂O₇ as the main phase. When R=Er, the (Y_0.99Er_0.01)₂ Ti₂O₇ samples sintered at 1450°C for 4h have optimum microwave dielectric properties: ε_r= 44.3, Q × f= 12021GHz(5.371GHz), τ_f = +44 × 10^-6/°C, which are better than those of Y₂Ti₂O₇ ceramics(ε_r= 54, Q×f=6565 GHz, τ_f =-31×10^-6/°C).

Original language	English
Pages (from-to)	762-765+769
Journal	Gongneng Cailiao/Journal of Functional Materials
Volume	42
Issue number	SUPPL. 4
State	Published - Aug 2011

Keywords

Doping
Inorganic non-metal materials
Microwave dielectric ceramics
Pyrochlore structure
YTiO

Cite this

@article{a5d446fd062e467b803ebfbe707f90ea,

title = "Microwave dielectric properties of (Y0.99R0.01)2 Ti2O7(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) ceramics",

abstract = "The (Y0.99R0.01)2 Ti2O7(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) microwave dielectric ceramics were prepared by conventional solid-state route. The effects of Pr, Tb, Ho, Er, Tm, Yb and Lu doping on the phase composition, sintering characteristics and microwave dielectric properties of Y2Ti2O7 ceramics were investigated. The results indicated that the doping on the A-site improved the microwave dielectric properties of Y2Ti2O7 ceramics. The prepared samples maintain a single pyrochlore phase and show Y2Ti2O7 as the main phase. When R=Er, the (Y0.99Er0.01)2 Ti2O7 samples sintered at 1450°C for 4h have optimum microwave dielectric properties: εr= 44.3, Q × f= 12021GHz(5.371GHz), τf = +44 × 10-6/°C, which are better than those of Y2Ti2O7 ceramics(εr= 54, Q×f=6565 GHz, τf =-31×10-6/°C).",

keywords = "Doping, Inorganic non-metal materials, Microwave dielectric ceramics, Pyrochlore structure, YTiO",

author = "Yuan Xiao and Wang, {Zhe Fei} and Gong, {Zhi Jie} and Wang, {Li Xi} and Zhang, {Qi Tu}",

year = "2011",

month = aug,

language = "英语",

volume = "42",

pages = "762--765+769",

journal = "Gongneng Cailiao/Journal of Functional Materials",

issn = "1001-9731",

publisher = "Journal of Functional Materials",

number = "SUPPL. 4",

}

TY - JOUR

T1 - Microwave dielectric properties of (Y0.99R0.01)2 Ti2O7(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) ceramics

AU - Xiao, Yuan

AU - Wang, Zhe Fei

AU - Gong, Zhi Jie

AU - Wang, Li Xi

AU - Zhang, Qi Tu

PY - 2011/8

Y1 - 2011/8

N2 - The (Y0.99R0.01)2 Ti2O7(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) microwave dielectric ceramics were prepared by conventional solid-state route. The effects of Pr, Tb, Ho, Er, Tm, Yb and Lu doping on the phase composition, sintering characteristics and microwave dielectric properties of Y2Ti2O7 ceramics were investigated. The results indicated that the doping on the A-site improved the microwave dielectric properties of Y2Ti2O7 ceramics. The prepared samples maintain a single pyrochlore phase and show Y2Ti2O7 as the main phase. When R=Er, the (Y0.99Er0.01)2 Ti2O7 samples sintered at 1450°C for 4h have optimum microwave dielectric properties: εr= 44.3, Q × f= 12021GHz(5.371GHz), τf = +44 × 10-6/°C, which are better than those of Y2Ti2O7 ceramics(εr= 54, Q×f=6565 GHz, τf =-31×10-6/°C).

AB - The (Y0.99R0.01)2 Ti2O7(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) microwave dielectric ceramics were prepared by conventional solid-state route. The effects of Pr, Tb, Ho, Er, Tm, Yb and Lu doping on the phase composition, sintering characteristics and microwave dielectric properties of Y2Ti2O7 ceramics were investigated. The results indicated that the doping on the A-site improved the microwave dielectric properties of Y2Ti2O7 ceramics. The prepared samples maintain a single pyrochlore phase and show Y2Ti2O7 as the main phase. When R=Er, the (Y0.99Er0.01)2 Ti2O7 samples sintered at 1450°C for 4h have optimum microwave dielectric properties: εr= 44.3, Q × f= 12021GHz(5.371GHz), τf = +44 × 10-6/°C, which are better than those of Y2Ti2O7 ceramics(εr= 54, Q×f=6565 GHz, τf =-31×10-6/°C).

KW - Doping

KW - Inorganic non-metal materials

KW - Microwave dielectric ceramics

KW - Pyrochlore structure

KW - YTiO

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M3 - 文章

AN - SCOPUS:80055084485

SN - 1001-9731

VL - 42

SP - 762-765+769

JO - Gongneng Cailiao/Journal of Functional Materials

JF - Gongneng Cailiao/Journal of Functional Materials

IS - SUPPL. 4

ER -

Microwave dielectric properties of (Y_0.99R_0.01)₂ Ti₂O₇(R=Pr, Tb, Ho, Er, Tm, Yb, Lu) ceramics

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