Studies on BaO-Y2O3-TiO2 Microwave Dielectric Ceramics

Zhang Qitu; Li Bin; Li Huili; Zhang Xiaoping

doi:10.1016/S1002-0721(07)60517-1

Studies on BaO-Y₂O₃-TiO₂ Microwave Dielectric Ceramics

Zhang Qitu, Li Bin, Li Huili, Zhang Xiaoping

College of Materials Science and Engineering

Nanjing Tech University

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

2 Scopus citations

Abstract

BaO-Y₂O₃-TiO₂ microwave dielectric ceramics with the rich area of TiO₂ were fabricated by a solid-state reaction method using BaCO₃, Y₂O₃, TiO₂ powders as starting materials. The sintering characteristics, phase composition, micro-structures and microwave dielectric properties of BaO-Y₂O₃-TiO₂ microwave dielectric ceramics with different k values sintered at different temperatures were investigated. The results showed that the sintering temperature of BaO-Y₂O₃-TiO₂ microwave dielectric ceramics was lower (about 1240 °C), and the sintered ceramics with the major phase of Y₂Ti₂O₇ had excellent dielectric properties. When k = 4, ε_r and tanδ were about 78.3 and 3 × 10^-3 respectively. When k=5, ε_r and tanδ were about 53 and 9 × 10^-4 respectively.

Original language	English
Pages (from-to)	30-33
Number of pages	4
Journal	Journal of Rare Earths
Volume	25
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/S1002-0721(07)60517-1
State	Published - Jun 2007

Keywords

BaO-YO-TiO
dielectric loss
dielectric permittivity
microwave dielectric ceramics
rare earths

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10.1016/S1002-0721(07)60517-1

Cite this

@article{27db5558b7d84272883d86f15fde1ba4,

title = "Studies on BaO-Y2O3-TiO2 Microwave Dielectric Ceramics",

abstract = "BaO-Y2O3-TiO2 microwave dielectric ceramics with the rich area of TiO2 were fabricated by a solid-state reaction method using BaCO3, Y2O3, TiO2 powders as starting materials. The sintering characteristics, phase composition, micro-structures and microwave dielectric properties of BaO-Y2O3-TiO2 microwave dielectric ceramics with different k values sintered at different temperatures were investigated. The results showed that the sintering temperature of BaO-Y2O3-TiO2 microwave dielectric ceramics was lower (about 1240 °C), and the sintered ceramics with the major phase of Y2Ti2O7 had excellent dielectric properties. When k = 4, εr and tanδ were about 78.3 and 3 × 10-3 respectively. When k=5, εr and tanδ were about 53 and 9 × 10-4 respectively.",

keywords = "BaO-YO-TiO, dielectric loss, dielectric permittivity, microwave dielectric ceramics, rare earths",

author = "Zhang Qitu and Li Bin and Li Huili and Zhang Xiaoping",

year = "2007",

month = jun,

doi = "10.1016/S1002-0721(07)60517-1",

language = "英语",

volume = "25",

pages = "30--33",

journal = "Journal of Rare Earths",

issn = "1002-0721",

publisher = "Editorial Office of Chinese Rare Earths",

number = "SUPPL. 1",

}

TY - JOUR

T1 - Studies on BaO-Y2O3-TiO2 Microwave Dielectric Ceramics

AU - Qitu, Zhang

AU - Bin, Li

AU - Huili, Li

AU - Xiaoping, Zhang

PY - 2007/6

Y1 - 2007/6

N2 - BaO-Y2O3-TiO2 microwave dielectric ceramics with the rich area of TiO2 were fabricated by a solid-state reaction method using BaCO3, Y2O3, TiO2 powders as starting materials. The sintering characteristics, phase composition, micro-structures and microwave dielectric properties of BaO-Y2O3-TiO2 microwave dielectric ceramics with different k values sintered at different temperatures were investigated. The results showed that the sintering temperature of BaO-Y2O3-TiO2 microwave dielectric ceramics was lower (about 1240 °C), and the sintered ceramics with the major phase of Y2Ti2O7 had excellent dielectric properties. When k = 4, εr and tanδ were about 78.3 and 3 × 10-3 respectively. When k=5, εr and tanδ were about 53 and 9 × 10-4 respectively.

AB - BaO-Y2O3-TiO2 microwave dielectric ceramics with the rich area of TiO2 were fabricated by a solid-state reaction method using BaCO3, Y2O3, TiO2 powders as starting materials. The sintering characteristics, phase composition, micro-structures and microwave dielectric properties of BaO-Y2O3-TiO2 microwave dielectric ceramics with different k values sintered at different temperatures were investigated. The results showed that the sintering temperature of BaO-Y2O3-TiO2 microwave dielectric ceramics was lower (about 1240 °C), and the sintered ceramics with the major phase of Y2Ti2O7 had excellent dielectric properties. When k = 4, εr and tanδ were about 78.3 and 3 × 10-3 respectively. When k=5, εr and tanδ were about 53 and 9 × 10-4 respectively.

KW - BaO-YO-TiO

KW - dielectric loss

KW - dielectric permittivity

KW - microwave dielectric ceramics

KW - rare earths

UR - http://www.scopus.com/inward/record.url?scp=36549077699&partnerID=8YFLogxK

U2 - 10.1016/S1002-0721(07)60517-1

DO - 10.1016/S1002-0721(07)60517-1

M3 - 文章

AN - SCOPUS:36549077699

SN - 1002-0721

VL - 25

SP - 30

EP - 33

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - SUPPL. 1

ER -

Studies on BaO-Y₂O₃-TiO₂ Microwave Dielectric Ceramics

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Keywords

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