Effects on properties of Y2O3-2TiO2 based microwave dielectric ceramics co-doped with Bi2Ti2O7 and PbTiO3

Jiayu Ding; Yuan Xiao; Qitu Zhang

Effects on properties of Y₂O₃-2TiO₂ based microwave dielectric ceramics co-doped with Bi₂Ti₂O₇ and PbTiO₃

Jiayu Ding, Yuan Xiao, Qitu Zhang

College of Materials Science and Engineering

Nanjing Tech University

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

Abstract

Effects of Bi₂Ti₂O₇ and PbTiO₃ co-doping on the microstructures, dielectric properties and sintering temperature of Y₂O₃-2TiO₂ based microwave dielectric ceramics were studied. The results showed that a pure and single-phase material could be obtained and the main phase exhibited a pyrochlore structure. Bi³⁺ and Pb²⁺ were incorporated into the A site of Y³⁺ of pyrochlore structure. The sintering temperature was effectively reduced by the Pb/Bi co-doping. As the based ceramics doped with 2% of PbTiO₃ and 8% of Bi₂Ti₂O₇, the sintering temperature was reduced to 1 260 °C, and good microwave dielectric properties of ε_r=64, tan δ=3.6×10^-3 and Q×f=2 438 GHz have been obtained.

Original language	English
Pages (from-to)	139-142
Number of pages	4
Journal	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
Volume	33
Issue number	1
State	Published - Feb 2011

Keywords

Dielectric properties
Lead titanate
Microwave dielectric ceramics
Pyrochlore structure
Sintering temperature

Cite this

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title = "Effects on properties of Y2O3-2TiO2 based microwave dielectric ceramics co-doped with Bi2Ti2O7 and PbTiO3",

abstract = "Effects of Bi2Ti2O7 and PbTiO3 co-doping on the microstructures, dielectric properties and sintering temperature of Y2O3-2TiO2 based microwave dielectric ceramics were studied. The results showed that a pure and single-phase material could be obtained and the main phase exhibited a pyrochlore structure. Bi3+ and Pb2+ were incorporated into the A site of Y3+ of pyrochlore structure. The sintering temperature was effectively reduced by the Pb/Bi co-doping. As the based ceramics doped with 2% of PbTiO3 and 8% of Bi2Ti2O7, the sintering temperature was reduced to 1 260 °C, and good microwave dielectric properties of εr=64, tan δ=3.6×10-3 and Q×f=2 438 GHz have been obtained.",

keywords = "Dielectric properties, Lead titanate, Microwave dielectric ceramics, Pyrochlore structure, Sintering temperature",

author = "Jiayu Ding and Yuan Xiao and Qitu Zhang",

year = "2011",

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language = "英语",

volume = "33",

pages = "139--142",

journal = "Yadian Yu Shengguang/Piezoelectrics and Acoustooptics",

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TY - JOUR

T1 - Effects on properties of Y2O3-2TiO2 based microwave dielectric ceramics co-doped with Bi2Ti2O7 and PbTiO3

AU - Ding, Jiayu

AU - Xiao, Yuan

AU - Zhang, Qitu

PY - 2011/2

Y1 - 2011/2

N2 - Effects of Bi2Ti2O7 and PbTiO3 co-doping on the microstructures, dielectric properties and sintering temperature of Y2O3-2TiO2 based microwave dielectric ceramics were studied. The results showed that a pure and single-phase material could be obtained and the main phase exhibited a pyrochlore structure. Bi3+ and Pb2+ were incorporated into the A site of Y3+ of pyrochlore structure. The sintering temperature was effectively reduced by the Pb/Bi co-doping. As the based ceramics doped with 2% of PbTiO3 and 8% of Bi2Ti2O7, the sintering temperature was reduced to 1 260 °C, and good microwave dielectric properties of εr=64, tan δ=3.6×10-3 and Q×f=2 438 GHz have been obtained.

AB - Effects of Bi2Ti2O7 and PbTiO3 co-doping on the microstructures, dielectric properties and sintering temperature of Y2O3-2TiO2 based microwave dielectric ceramics were studied. The results showed that a pure and single-phase material could be obtained and the main phase exhibited a pyrochlore structure. Bi3+ and Pb2+ were incorporated into the A site of Y3+ of pyrochlore structure. The sintering temperature was effectively reduced by the Pb/Bi co-doping. As the based ceramics doped with 2% of PbTiO3 and 8% of Bi2Ti2O7, the sintering temperature was reduced to 1 260 °C, and good microwave dielectric properties of εr=64, tan δ=3.6×10-3 and Q×f=2 438 GHz have been obtained.

KW - Dielectric properties

KW - Lead titanate

KW - Microwave dielectric ceramics

KW - Pyrochlore structure

KW - Sintering temperature

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JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

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Effects on properties of Y₂O₃-2TiO₂ based microwave dielectric ceramics co-doped with Bi₂Ti₂O₇ and PbTiO₃

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Keywords

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