Effects of Sintering Temperatures on Microwave Properties of Mg4Nb2O9 Ceramics by the Solid-State Process

Yi Shan Jiang; Ying Zi Wang; Ya Ming Chen; Yun Long Yue; Hai Tao Wu

doi:10.4028/www.scientific.net/AMR.499.178

Paper Titles

The Abstract Device Models and the General Mathematical Models for Energy and Exergy Analyse in Papermaking Mill
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Effects of Ball Milling Time on the Microwave Properties of Mg₄Nb₂O₉ Ceramics by the Solid-State Process
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Pilot Study of Coagulation-Direct Filtration for Low-Temperature and Low-Turbidity Source Water
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Study on the Phase Formation of Corundum-Type Mg₄Nb₂O₉ Powders by the Solid-State Process
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Effects of Sintering Temperatures on Microwave Properties of Mg₄Nb₂O₉ Ceramics by the Solid-State Process
p.178

The Optimization Design of Certain FRP Sluice Gate
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Effects of Holding Time on Microwave Properties of Mg₄Nb₂O₉ Ceramics by the Solid-State Process
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Advances in Process Technology of Sepiolite Mineral Fibrous Materials
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Quantitative Analysis of Residence Time Distribution in Kenics Static Mixer
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 499Effects of Sintering Temperatures on Microwave...

Effects of Sintering Temperatures on Microwave Properties of Mg₄Nb₂O₉ Ceramics by the Solid-State Process

Abstract:

Microwave dielectric ceramics of Mg₄Nb₂O₉ were prepared by the solid-state method and their microwave dielectric properties and microstructure were investigated in this study. The sintering ability and microwave dielectric properties of Mg₄Nb₂O₉ ceramics were studied under various sintering temperatures ranging from 1200°C to 1350°C. As the sintering temperature increased from 1200°C to 1350°C, the density values, the εr values and the Q·ƒ values increased and saturated at 1350°C.The ƒ values were ranged from -48.7 to -57.8 ppm/°C. Due to the increased density and appropriate grain growth the Mg₄Nb₂O₉ ceramics sintered at 1350°C had the excellent microwave dielectric properties of ε_r=12.3, Q·ƒ =108,000GHz and ƒ=-55.3ppm/°C.

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Periodical:

Advanced Materials Research (Volume 499)

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178-182

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https://doi.org/10.4028/www.scientific.net/AMR.499.178

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Online since:

April 2012

Authors:

Yi Shan Jiang, Ying Zi Wang, Ya Ming Chen, Yun Long Yue, Hai Tao Wu

Keywords:

Magnesium Niobate, Microwave Properties, Solid-State Process

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