Microwave Dielectric Characteristics of BaO-Nd2O3-TiO2 Nano-Particles by Millimeter-Wave Sintering

Yong Xiang; Dao Hua Xie; Yu Shuang Zhao; Yi Long Su; Ji Run Luo

doi:10.4028/www.scientific.net/KEM.280-283.31

Paper Titles

(Ag_1-xNa_x)(Nb_1-yTa_y)O₃ Dielectric Ceramic Prepared through Citrate Precursor Method
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Effects of Ti⁴⁺ Substitution on Microstructure and Microwave Dielectric Properties of ZnNb_2(1-x)TixO_(6-3x) Ceramics
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Influences of MnCO₃ Doping on Processing Parameters and Dielectric Properties of ZnNb₂O₆ Microwave Ceramics
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Effects of CuO-V₂O₅-Bi₂O₃ Additions on the Microstructure and Microwave Dielectric Properties of 0.42ZnNb₂O₆-0.58TiO₂ Ceramics
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Microwave Dielectric Characteristics of BaO-Nd₂O₃-TiO₂ Nano-Particles by Millimeter-Wave Sintering
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Effects of Mg²⁺ on Microstructure and Microwave Dielectric Properties of La_2/3TiO₃ Ceramics
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Electronic Structure Calculations of Ba(Mg_1/3Nb_2/3)O₃ and its Dielectric Properties Analysis
p.39

Dielectric Polarization of Ba₂Ti₉O₂₀ Ceramics for Microwave Applications
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Preparation and Structure of Ba₂Ti₉O₂₀ and BaTi₄O₉ Ceramics Derived from Sol-Gel Powders
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 280-283Microwave Dielectric Characteristics of...

Microwave Dielectric Characteristics of BaO-Nd₂O₃-TiO₂ Nano-Particles by Millimeter-Wave Sintering

Abstract:

By means of 34.5 GHz millimeter-wave (MMW) sintering, BaO-Nd2O3-TiO2 microwave ceramic dielectric was prepared from nano-particles of the xBaO×(0.35-x)Nd2O3×0.65TiO2 ternary compound, which possess fine grain, low porosity and good dielectric characteristics. The materials which have ultra-low dielectric loss can be fired by MMW heating at very high frequency, which is unable to be done by normal microwave heating at 2.45 GHz. The sintering temperature is 160 ~ 400°C lower than that of normal firing. The ceramic sample consists of the main phase of Nd2Ti2O7 with perovskite-like layer structure (PLS) and the secondary phase of BaNd2Ti4O12 (Ba4.5Nd9Ti18O54)with perovskite-like tungsten bronze structure, being the same as the results from normal sintering. The excellent microwave characteristics were observed.

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Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

31-34

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.31

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Online since:

February 2007

Authors:

Yong Xiang, Dao Hua Xie, Yu Shuang Zhao, Yi Long Su, Ji Run Luo

Keywords:

Microwave Ceramic Dielectric, Millimeter-Wave Sintering, Nanoparticle

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