Microstructure and microwave sielectric properties of (Sr1-xBax)La4Ti4O15 ceramics

Li Wang; Feng Gao; Dashuai Zhang; Min Wang; Mengjie Qin

Microstructure and microwave sielectric properties of (Sr_1-xBa_x)La₄Ti₄O₁₅ ceramics

Li Wang, Feng Gao, Dashuai Zhang, Min Wang, Mengjie Qin

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

1 Scopus citations

Abstract

(Sr_1-xBa_x)La₄Ti₄O₁₅(x=0~1, BSLT) microwave dielectric ceramics were fabricated by the conventional solid state reaction method. The phase composition, microstructure and microwave dielectric properties of BSLT ceramics were investigated. The results show that adding Ba²⁺ into BSLT ceramics would help to lower sintering temperature. The La₂TiO₅ main phase was observed in the ceramics besides the second phase of (Sr, Ba)La₄Ti₄O₁₅. With increasing the content of Ba²⁺, the dielectric constant and the value of Q×f increases firstly and then decreases and the value of the temperature coefficient of resonance frequency ranges from -4×10^-6/℃ to -11×10^-6/℃. The ceramic with composition of (Sr_0.9Ba_0.1)La₄Ti₄O₁₅ shows the optimal dielectric properties: ε_r=47.5, Q×f=31 582 GHz, τ_f =-7.5×10^-6/℃.

Original language	English
Pages (from-to)	207-211 and 216
Journal	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
Volume	38
Issue number	2
State	Published - 1 Apr 2016

Keywords

(SrBa)LaTiO
Dielectric properties
LaTiO
Microstructure
Microwave dielectric ceramics

Cite this

@article{71a7b309748c43cd94a5d1a0f4022d62,

title = "Microstructure and microwave sielectric properties of (Sr1-xBax)La4Ti4O15 ceramics",

abstract = "(Sr1-xBax)La4Ti4O15(x=0~1, BSLT) microwave dielectric ceramics were fabricated by the conventional solid state reaction method. The phase composition, microstructure and microwave dielectric properties of BSLT ceramics were investigated. The results show that adding Ba2+ into BSLT ceramics would help to lower sintering temperature. The La2TiO5 main phase was observed in the ceramics besides the second phase of (Sr, Ba)La4Ti4O15. With increasing the content of Ba2+, the dielectric constant and the value of Q×f increases firstly and then decreases and the value of the temperature coefficient of resonance frequency ranges from -4×10-6/℃ to -11×10-6/℃. The ceramic with composition of (Sr0.9Ba0.1)La4Ti4O15 shows the optimal dielectric properties: εr=47.5, Q×f=31 582 GHz, τf =-7.5×10-6/℃.",

keywords = "(SrBa)LaTiO, Dielectric properties, LaTiO, Microstructure, Microwave dielectric ceramics",

author = "Li Wang and Feng Gao and Dashuai Zhang and Min Wang and Mengjie Qin",

year = "2016",

month = apr,

day = "1",

language = "英语",

volume = "38",

pages = "207--211 and 216",

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

issn = "1004-2474",

publisher = "Sichuan Institute of Piezoelectric and Acoustooptic Technology",

number = "2",

}

TY - JOUR

T1 - Microstructure and microwave sielectric properties of (Sr1-xBax)La4Ti4O15 ceramics

AU - Wang, Li

AU - Gao, Feng

AU - Zhang, Dashuai

AU - Wang, Min

AU - Qin, Mengjie

PY - 2016/4/1

Y1 - 2016/4/1

N2 - (Sr1-xBax)La4Ti4O15(x=0~1, BSLT) microwave dielectric ceramics were fabricated by the conventional solid state reaction method. The phase composition, microstructure and microwave dielectric properties of BSLT ceramics were investigated. The results show that adding Ba2+ into BSLT ceramics would help to lower sintering temperature. The La2TiO5 main phase was observed in the ceramics besides the second phase of (Sr, Ba)La4Ti4O15. With increasing the content of Ba2+, the dielectric constant and the value of Q×f increases firstly and then decreases and the value of the temperature coefficient of resonance frequency ranges from -4×10-6/℃ to -11×10-6/℃. The ceramic with composition of (Sr0.9Ba0.1)La4Ti4O15 shows the optimal dielectric properties: εr=47.5, Q×f=31 582 GHz, τf =-7.5×10-6/℃.

AB - (Sr1-xBax)La4Ti4O15(x=0~1, BSLT) microwave dielectric ceramics were fabricated by the conventional solid state reaction method. The phase composition, microstructure and microwave dielectric properties of BSLT ceramics were investigated. The results show that adding Ba2+ into BSLT ceramics would help to lower sintering temperature. The La2TiO5 main phase was observed in the ceramics besides the second phase of (Sr, Ba)La4Ti4O15. With increasing the content of Ba2+, the dielectric constant and the value of Q×f increases firstly and then decreases and the value of the temperature coefficient of resonance frequency ranges from -4×10-6/℃ to -11×10-6/℃. The ceramic with composition of (Sr0.9Ba0.1)La4Ti4O15 shows the optimal dielectric properties: εr=47.5, Q×f=31 582 GHz, τf =-7.5×10-6/℃.

KW - (SrBa)LaTiO

KW - Dielectric properties

KW - LaTiO

KW - Microstructure

KW - Microwave dielectric ceramics

UR - http://www.scopus.com/inward/record.url?scp=84963812326&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:84963812326

SN - 1004-2474

VL - 38

SP - 207-211 and 216

JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

JF - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

IS - 2

ER -

Microstructure and microwave sielectric properties of (Sr_1-xBa_x)La₄Ti₄O₁₅ ceramics

Abstract

Keywords

Other files and links

Fingerprint

Cite this