New low-dielectric-loss NiZrNb2O8 ceramics for microwave application

Wang Suo Xia; Fan Yu Yang; Guo Ying Zhang; Kui Han; De Chun Guo

doi:10.1016/j.jallcom.2015.10.008

New low-dielectric-loss NiZrNb₂O₈ ceramics for microwave application

Wang Suo Xia^*, Fan Yu Yang, Guo Ying Zhang, Kui Han, De Chun Guo

^*Corresponding author for this work

School of Integrated Circuits and Electronics

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

56 Citations (Scopus)

Abstract

New low-loss NiZrNb₂O₈ microwave dielectric ceramics were synthesized via conventional mixed oxide route. The morphology, crystal structure and microwave dielectric properties were investigated. It exhibited a monoclinic wolframite crystal structure, with the space group of P2/c (C2h4). The lattice energy was carried out to evaluate the structural stability and sintering characteristics. Two kinds of grain shapes in dense samples, with similar elements ratios, were observed. Variations in the dielectric constant (ε_r) were analyzed by relative density and porosity-corrected polarizability. The quality factor (Q × ) was correlated with packing fraction and grain growth. The temperature coefficient of resonant (τ) was depended on the dielectric constant. The typical microwave dielectric properties of NiZrNb₂O₈ were ε_r = 23.77, Q × = 40280 GHz, τ = -27.5 ppm/°C, sintered at 1200 °C.

Original language	English
Pages (from-to)	470-475
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	656
DOIs	https://doi.org/10.1016/j.jallcom.2015.10.008
Publication status	Published - 25 Jan 2016

Keywords

Ceramics
Microstructure
Microwave dielectric properties
NiZrNbO
Packing fraction

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10.1016/j.jallcom.2015.10.008

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@article{5239d4adb6d6440b80efb154c0c75861,

title = "New low-dielectric-loss NiZrNb2O8 ceramics for microwave application",

abstract = "New low-loss NiZrNb2O8 microwave dielectric ceramics were synthesized via conventional mixed oxide route. The morphology, crystal structure and microwave dielectric properties were investigated. It exhibited a monoclinic wolframite crystal structure, with the space group of P2/c (C2h4). The lattice energy was carried out to evaluate the structural stability and sintering characteristics. Two kinds of grain shapes in dense samples, with similar elements ratios, were observed. Variations in the dielectric constant (εr) were analyzed by relative density and porosity-corrected polarizability. The quality factor (Q × ) was correlated with packing fraction and grain growth. The temperature coefficient of resonant (τ) was depended on the dielectric constant. The typical microwave dielectric properties of NiZrNb2O8 were εr = 23.77, Q × = 40280 GHz, τ = -27.5 ppm/°C, sintered at 1200 °C.",

keywords = "Ceramics, Microstructure, Microwave dielectric properties, NiZrNbO, Packing fraction",

author = "Xia, {Wang Suo} and Yang, {Fan Yu} and Zhang, {Guo Ying} and Kui Han and Guo, {De Chun}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

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day = "25",

doi = "10.1016/j.jallcom.2015.10.008",

language = "English",

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pages = "470--475",

journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - New low-dielectric-loss NiZrNb2O8 ceramics for microwave application

AU - Xia, Wang Suo

AU - Yang, Fan Yu

AU - Zhang, Guo Ying

AU - Han, Kui

AU - Guo, De Chun

PY - 2016/1/25

Y1 - 2016/1/25

N2 - New low-loss NiZrNb2O8 microwave dielectric ceramics were synthesized via conventional mixed oxide route. The morphology, crystal structure and microwave dielectric properties were investigated. It exhibited a monoclinic wolframite crystal structure, with the space group of P2/c (C2h4). The lattice energy was carried out to evaluate the structural stability and sintering characteristics. Two kinds of grain shapes in dense samples, with similar elements ratios, were observed. Variations in the dielectric constant (εr) were analyzed by relative density and porosity-corrected polarizability. The quality factor (Q × ) was correlated with packing fraction and grain growth. The temperature coefficient of resonant (τ) was depended on the dielectric constant. The typical microwave dielectric properties of NiZrNb2O8 were εr = 23.77, Q × = 40280 GHz, τ = -27.5 ppm/°C, sintered at 1200 °C.

AB - New low-loss NiZrNb2O8 microwave dielectric ceramics were synthesized via conventional mixed oxide route. The morphology, crystal structure and microwave dielectric properties were investigated. It exhibited a monoclinic wolframite crystal structure, with the space group of P2/c (C2h4). The lattice energy was carried out to evaluate the structural stability and sintering characteristics. Two kinds of grain shapes in dense samples, with similar elements ratios, were observed. Variations in the dielectric constant (εr) were analyzed by relative density and porosity-corrected polarizability. The quality factor (Q × ) was correlated with packing fraction and grain growth. The temperature coefficient of resonant (τ) was depended on the dielectric constant. The typical microwave dielectric properties of NiZrNb2O8 were εr = 23.77, Q × = 40280 GHz, τ = -27.5 ppm/°C, sintered at 1200 °C.

KW - Ceramics

KW - Microstructure

KW - Microwave dielectric properties

KW - NiZrNbO

KW - Packing fraction

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DO - 10.1016/j.jallcom.2015.10.008

M3 - Article

AN - SCOPUS:84944270218

SN - 0925-8388

VL - 656

SP - 470

EP - 475

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

New low-dielectric-loss NiZrNb₂O₈ ceramics for microwave application

Abstract

Keywords

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