NDLI: Characterization of microwave dielectric materials NiZrNb$_{2}$O$

Content Provider	SpringerLink
Author	Jiang, X. S. Pan, H. L. Feng, Z. B. Wu, H. T.
Copyright Year	2016
Abstract	Wolframite structure NiZrNb$_{2}$O$_{8}$ ceramics were prepared by the solid state reaction method. Sintering characteristics and microwave dielectric properties were investigated under various sintering temperatures ranging from 1100 to 1300 °C. The micro-structure, crystal structure and phase composition were studied by the scanning electron microscopy techniques, X-ray diffraction and energy disperse spectroscopy, respectively. Refinement was used to analyze the crystal structure. Based on the cell parameters, the chemical bond theory was used to calculate the lattice energy, bond ionicity and the coefficient of thermal expansion for the characterization of correlations between properties and structures of NiZrNb$_{2}$O$_{8}$ ceramics. The microwave dielectric properties of NiZrNb$_{2}$O$_{8}$ were strongly dependent on the chemical bond ionicity, lattice energy and coefficient of thermal expansion. The ε $_{ r }$ values could be strongly dependent on the bond ionicity of the Nb–O bonds. The Q·f values were affected by the lattice energy of Nb–O bonds. As for the τ $_{ f }$ values, it could be mainly affected by the coefficient of thermal expansion of Ni–O bonds. At the sintering temperature of 1250 °C, NiZrNb$_{2}$O$_{8}$ ceramics exhibited the excellent microwave properties of ε $_{ r }$ = 18.84, Q·f = 18, 142 GHz and τ $_{ f }$ = −35.43 ppm/°C.
Starting Page	10963
Ending Page	10969
Page Count	7
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	27
Issue Number	10
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2016-06-24
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering Electronic, Optical and Magnetic Materials Bioengineering Condensed Matter Physics Biophysics Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering Biomaterials

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