Low-temperature densification of Mg2SnO4 ceramics with LiF-Fe2O3-V2O5 additive

Juehui Zhou; Nuoxin Xu; Qilong Zhang; Di Zhou; Xin Tang; Hui Yang

doi:10.1016/j.matlet.2014.10.064

Low-temperature densification of Mg₂SnO₄ ceramics with LiF-Fe₂O₃-V₂O₅ additive

Juehui Zhou
, Nuoxin Xu
, Qilong Zhang
, Di Zhou
, Xin Tang
, Hui Yang

Faculty of Electronic and Information Engineering

Zhejiang University

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

10 Scopus citations

Abstract

The effects of LiF-Fe₂O₃-V₂O₅ (LFV) additive on the sinterability, microstructure, phase composition, and microwave dielectric properties of Mg₂SnO₄ is investigated. By adding LFV additive, the densification temperature of Mg₂SnO₄ ceramics is significantly lowered from 1550 °C to 1050 °C. XRD shows all doped samples are single-phase Mg₂SnO₄ with Fd3m space group. TEM image and EDS spectra indicate that an amorphous phase is formed in the intergranular region, and Fe³⁺ ions presents in Mg₂SnO₄ matrix. Mg₂SnO₄ with 4 wt.% LFV additive sintered at 1050 °C provides the attractive combination of dense microstructure and excellent dielectric properties: ε_r=7.90, Q×f=41,400 GHz and τ_f=-82 ppm/°C. In addition, the ceramic is compatible with Ag/Pd electrodes, suggesting the potential application in millimeter-wave communication.

Original language	English
Pages (from-to)	169-172
Number of pages	4
Journal	Materials Letters
Volume	139
DOIs	https://doi.org/10.1016/j.matlet.2014.10.064
State	Published - 15 Jan 2015

Keywords

Dielectrics
Electrical properties
Electroceramics
Microstructure
Sintering

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10.1016/j.matlet.2014.10.064

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@article{26c58edc02fe44b8b2adda6f7a44c0ed,

title = "Low-temperature densification of Mg2SnO4 ceramics with LiF-Fe2O3-V2O5 additive",

abstract = "The effects of LiF-Fe2O3-V2O5 (LFV) additive on the sinterability, microstructure, phase composition, and microwave dielectric properties of Mg2SnO4 is investigated. By adding LFV additive, the densification temperature of Mg2SnO4 ceramics is significantly lowered from 1550 °C to 1050 °C. XRD shows all doped samples are single-phase Mg2SnO4 with Fd3m space group. TEM image and EDS spectra indicate that an amorphous phase is formed in the intergranular region, and Fe3+ ions presents in Mg2SnO4 matrix. Mg2SnO4 with 4 wt.\% LFV additive sintered at 1050 °C provides the attractive combination of dense microstructure and excellent dielectric properties: εr=7.90, Q×f=41,400 GHz and τf=-82 ppm/°C. In addition, the ceramic is compatible with Ag/Pd electrodes, suggesting the potential application in millimeter-wave communication.",

keywords = "Dielectrics, Electrical properties, Electroceramics, Microstructure, Sintering",

author = "Juehui Zhou and Nuoxin Xu and Qilong Zhang and Di Zhou and Xin Tang and Hui Yang",

year = "2015",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2014.10.064",

language = "英语",

volume = "139",

pages = "169--172",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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T1 - Low-temperature densification of Mg2SnO4 ceramics with LiF-Fe2O3-V2O5 additive

AU - Zhou, Juehui

AU - Xu, Nuoxin

AU - Zhang, Qilong

AU - Zhou, Di

AU - Tang, Xin

AU - Yang, Hui

PY - 2015/1/15

Y1 - 2015/1/15

N2 - The effects of LiF-Fe2O3-V2O5 (LFV) additive on the sinterability, microstructure, phase composition, and microwave dielectric properties of Mg2SnO4 is investigated. By adding LFV additive, the densification temperature of Mg2SnO4 ceramics is significantly lowered from 1550 °C to 1050 °C. XRD shows all doped samples are single-phase Mg2SnO4 with Fd3m space group. TEM image and EDS spectra indicate that an amorphous phase is formed in the intergranular region, and Fe3+ ions presents in Mg2SnO4 matrix. Mg2SnO4 with 4 wt.% LFV additive sintered at 1050 °C provides the attractive combination of dense microstructure and excellent dielectric properties: εr=7.90, Q×f=41,400 GHz and τf=-82 ppm/°C. In addition, the ceramic is compatible with Ag/Pd electrodes, suggesting the potential application in millimeter-wave communication.

AB - The effects of LiF-Fe2O3-V2O5 (LFV) additive on the sinterability, microstructure, phase composition, and microwave dielectric properties of Mg2SnO4 is investigated. By adding LFV additive, the densification temperature of Mg2SnO4 ceramics is significantly lowered from 1550 °C to 1050 °C. XRD shows all doped samples are single-phase Mg2SnO4 with Fd3m space group. TEM image and EDS spectra indicate that an amorphous phase is formed in the intergranular region, and Fe3+ ions presents in Mg2SnO4 matrix. Mg2SnO4 with 4 wt.% LFV additive sintered at 1050 °C provides the attractive combination of dense microstructure and excellent dielectric properties: εr=7.90, Q×f=41,400 GHz and τf=-82 ppm/°C. In addition, the ceramic is compatible with Ag/Pd electrodes, suggesting the potential application in millimeter-wave communication.

KW - Dielectrics

KW - Electrical properties

KW - Electroceramics

KW - Microstructure

KW - Sintering

UR - https://www.scopus.com/pages/publications/84908402953

U2 - 10.1016/j.matlet.2014.10.064

DO - 10.1016/j.matlet.2014.10.064

M3 - 文章

AN - SCOPUS:84908402953

SN - 0167-577X

VL - 139

SP - 169

EP - 172

JO - Materials Letters

JF - Materials Letters

ER -

Low-temperature densification of Mg₂SnO₄ ceramics with LiF-Fe₂O₃-V₂O₅ additive

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Keywords

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