Effect of B2O3 doping on the properties of 0.69CaTiO3-0.31LaAlO3 microwave dielectric ceramics

Dan Ma; Wei Mu; Tai Qiu

Effect of B₂O₃ doping on the properties of 0.69CaTiO₃-0.31LaAlO₃ microwave dielectric ceramics

Dan Ma, Wei Mu, Tai Qiu

College of Materials Science and Engineering

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

6 Scopus citations

Abstract

The effects of B₂O₃ additive on the sintering and microwave dielectric properties of 0.69CaTiO₃-0.31LaAlO₃ ceramics prepared by conventional solid-state route were investigated. The results of X-ray diffraction analysis showed that the addition of B₂O₃ does not change the crystal phase of ceramics. Moderate addition of B₂O₃ could not only effectively lower sintering temperature and promote the densification but also improve the dielectric properties. The 0.3wt% B₂O₃-doped 0.69CaTiO₃-0.31LaAlO₃ ceramic sintered at 1500°C exhibits the optimal dielectric properties: ε_r≈45.4, Q_f≈52800 GHz, τ_f≈8.78 ppm/°C.

Original language	English
Pages (from-to)	1347-1352
Number of pages	6
Journal	Rengong Jingti Xuebao/Journal of Synthetic Crystals
Volume	42
Issue number	7
State	Published - Jul 2013

Keywords

BO
Densification
Dielectric properties
Sintering temperature

Cite this

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title = "Effect of B2O3 doping on the properties of 0.69CaTiO3-0.31LaAlO3 microwave dielectric ceramics",

abstract = "The effects of B2O3 additive on the sintering and microwave dielectric properties of 0.69CaTiO3-0.31LaAlO3 ceramics prepared by conventional solid-state route were investigated. The results of X-ray diffraction analysis showed that the addition of B2O3 does not change the crystal phase of ceramics. Moderate addition of B2O3 could not only effectively lower sintering temperature and promote the densification but also improve the dielectric properties. The 0.3wt% B2O3-doped 0.69CaTiO3-0.31LaAlO3 ceramic sintered at 1500°C exhibits the optimal dielectric properties: εr≈45.4, Qf≈52800 GHz, τf≈8.78 ppm/°C.",

keywords = "BO, Densification, Dielectric properties, Sintering temperature",

author = "Dan Ma and Wei Mu and Tai Qiu",

year = "2013",

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pages = "1347--1352",

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

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T1 - Effect of B2O3 doping on the properties of 0.69CaTiO3-0.31LaAlO3 microwave dielectric ceramics

AU - Ma, Dan

AU - Mu, Wei

AU - Qiu, Tai

PY - 2013/7

Y1 - 2013/7

N2 - The effects of B2O3 additive on the sintering and microwave dielectric properties of 0.69CaTiO3-0.31LaAlO3 ceramics prepared by conventional solid-state route were investigated. The results of X-ray diffraction analysis showed that the addition of B2O3 does not change the crystal phase of ceramics. Moderate addition of B2O3 could not only effectively lower sintering temperature and promote the densification but also improve the dielectric properties. The 0.3wt% B2O3-doped 0.69CaTiO3-0.31LaAlO3 ceramic sintered at 1500°C exhibits the optimal dielectric properties: εr≈45.4, Qf≈52800 GHz, τf≈8.78 ppm/°C.

AB - The effects of B2O3 additive on the sintering and microwave dielectric properties of 0.69CaTiO3-0.31LaAlO3 ceramics prepared by conventional solid-state route were investigated. The results of X-ray diffraction analysis showed that the addition of B2O3 does not change the crystal phase of ceramics. Moderate addition of B2O3 could not only effectively lower sintering temperature and promote the densification but also improve the dielectric properties. The 0.3wt% B2O3-doped 0.69CaTiO3-0.31LaAlO3 ceramic sintered at 1500°C exhibits the optimal dielectric properties: εr≈45.4, Qf≈52800 GHz, τf≈8.78 ppm/°C.

KW - BO

KW - Densification

KW - Dielectric properties

KW - Sintering temperature

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M3 - 文章

AN - SCOPUS:84886835353

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JO - Rengong Jingti Xuebao/Journal of Synthetic Crystals

JF - Rengong Jingti Xuebao/Journal of Synthetic Crystals

IS - 7

ER -

Effect of B₂O₃ doping on the properties of 0.69CaTiO₃-0.31LaAlO₃ microwave dielectric ceramics

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