Microstructure, phase evolution and interfacial effects in a new Zn0.9Mg0.1TiO3-ZnNb2O6 ceramic system with greatly induced improvement in microwave dielectric properties

Shenhui Lei; Huiqing Fan; Xiaohu Ren; Jiawen Fang; Longtao Ma; Hailin Tian

doi:10.1016/j.scriptamat.2017.11.025

Microstructure, phase evolution and interfacial effects in a new Zn_0.9Mg_0.1TiO₃-ZnNb₂O₆ ceramic system with greatly induced improvement in microwave dielectric properties

Shenhui Lei, Huiqing Fan, Xiaohu Ren, Jiawen Fang, Longtao Ma, Hailin Tian

School of Materials Sience and Engineering

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

26 Scopus citations

Abstract

Zn0_.9Mg_0.1TiO₃-ZnNb₂O₆ (ZMT-ZN) ceramics was synthesized and characterized successfully for the first time, and phase conversion to secondary phases was largely restrained due to the introduction of ZnO nano inhibitors. Excellent microwave dielectric properties and optimal combination were achieved for the ceramics sintered at 1100 °C, i.e., ε_r = 27.5, Q × f = 75,000 GHz, τ_f = − 3.8 ppm/°C. Particularly, the comparatively insulated interlayers were considered as the key mechanism to impede transportation or transfer of defects and surface polarization charges. Considering the merits of facile, low cost and simple process, this series of ZMT-ZN ceramics are promising new candidates for ultra-low microwave devices.

Original language	English
Pages (from-to)	154-159
Number of pages	6
Journal	Scripta Materialia
Volume	146
DOIs	https://doi.org/10.1016/j.scriptamat.2017.11.025
State	Published - 15 Mar 2018

Keywords

Interfacial effect
Microwave dielectric properties
Structural evolution
ZnMgTiO-ZnNbO ceramics
ZnO inhibitor

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10.1016/j.scriptamat.2017.11.025

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title = "Microstructure, phase evolution and interfacial effects in a new Zn0.9Mg0.1TiO3-ZnNb2O6 ceramic system with greatly induced improvement in microwave dielectric properties",

abstract = "Zn0.9Mg0.1TiO3-ZnNb2O6 (ZMT-ZN) ceramics was synthesized and characterized successfully for the first time, and phase conversion to secondary phases was largely restrained due to the introduction of ZnO nano inhibitors. Excellent microwave dielectric properties and optimal combination were achieved for the ceramics sintered at 1100 °C, i.e., εr = 27.5, Q × f = 75,000 GHz, τf = − 3.8 ppm/°C. Particularly, the comparatively insulated interlayers were considered as the key mechanism to impede transportation or transfer of defects and surface polarization charges. Considering the merits of facile, low cost and simple process, this series of ZMT-ZN ceramics are promising new candidates for ultra-low microwave devices.",

keywords = "Interfacial effect, Microwave dielectric properties, Structural evolution, ZnMgTiO-ZnNbO ceramics, ZnO inhibitor",

author = "Shenhui Lei and Huiqing Fan and Xiaohu Ren and Jiawen Fang and Longtao Ma and Hailin Tian",

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doi = "10.1016/j.scriptamat.2017.11.025",

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T1 - Microstructure, phase evolution and interfacial effects in a new Zn0.9Mg0.1TiO3-ZnNb2O6 ceramic system with greatly induced improvement in microwave dielectric properties

AU - Lei, Shenhui

AU - Fan, Huiqing

AU - Ren, Xiaohu

AU - Fang, Jiawen

AU - Ma, Longtao

AU - Tian, Hailin

PY - 2018/3/15

Y1 - 2018/3/15

N2 - Zn0.9Mg0.1TiO3-ZnNb2O6 (ZMT-ZN) ceramics was synthesized and characterized successfully for the first time, and phase conversion to secondary phases was largely restrained due to the introduction of ZnO nano inhibitors. Excellent microwave dielectric properties and optimal combination were achieved for the ceramics sintered at 1100 °C, i.e., εr = 27.5, Q × f = 75,000 GHz, τf = − 3.8 ppm/°C. Particularly, the comparatively insulated interlayers were considered as the key mechanism to impede transportation or transfer of defects and surface polarization charges. Considering the merits of facile, low cost and simple process, this series of ZMT-ZN ceramics are promising new candidates for ultra-low microwave devices.

AB - Zn0.9Mg0.1TiO3-ZnNb2O6 (ZMT-ZN) ceramics was synthesized and characterized successfully for the first time, and phase conversion to secondary phases was largely restrained due to the introduction of ZnO nano inhibitors. Excellent microwave dielectric properties and optimal combination were achieved for the ceramics sintered at 1100 °C, i.e., εr = 27.5, Q × f = 75,000 GHz, τf = − 3.8 ppm/°C. Particularly, the comparatively insulated interlayers were considered as the key mechanism to impede transportation or transfer of defects and surface polarization charges. Considering the merits of facile, low cost and simple process, this series of ZMT-ZN ceramics are promising new candidates for ultra-low microwave devices.

KW - Interfacial effect

KW - Microwave dielectric properties

KW - Structural evolution

KW - ZnMgTiO-ZnNbO ceramics

KW - ZnO inhibitor

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U2 - 10.1016/j.scriptamat.2017.11.025

DO - 10.1016/j.scriptamat.2017.11.025

M3 - 文章

AN - SCOPUS:85034814860

SN - 1359-6462

VL - 146

SP - 154

EP - 159

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Microstructure, phase evolution and interfacial effects in a new Zn_0.9Mg_0.1TiO₃-ZnNb₂O₆ ceramic system with greatly induced improvement in microwave dielectric properties

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Keywords

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