Effects of La2O3 Additions on Microstructure and Microwave Dielectric Properties of Mg2TiO4 Ceramics

Abstract

Abstract: 1-x)Mg₂TiO₄-xLa₂O₃ ceramics were prepared corresponding to 0≤x≤0.1 by the conventional solid-state reaction methed. Their microstructures, dielectric properties were investigated. For the sample without La₂O₃, its average grain size was more than 60μm. With La₂O₃ added, the grain sizes became smaller and new crystal phase _La0.66TiO_2.99 appeared. In the meantime, dielectric constants of materials increased and the quality factor Q values can be up to 16558(10GHz) at x=0.03. Besides, microstructures of materials also changed obviously.

Key words: microwave material, （1-x）Mg₂TiO₄-xLa₂O₃ ceramics, dielectric properties

CLC Number:

TQ174

GUI Jian-Fei,CHEN Wei,WANG Nai-Gang,ZHANG Gan-Cheng,LUO Lan. Effects of La₂O₃ Additions on Microstructure and Microwave Dielectric Properties of Mg₂TiO₄ Ceramics[J]. Journal of Inorganic Materials.

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Effects of La₂O₃ Additions on Microstructure and Microwave Dielectric Properties of Mg₂TiO₄ Ceramics

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