Synthesis of (1–x) CaTiO3–xNdAlO3 Ceramic Powder via Ethylenediaminetetraacetic Acid Precursor

Guo Hua Huang; Jian Mei Xu; Yan Yun Tang; Jin Li Huang; Ping Ying Tang; Dong Xiang Zhou

doi:10.4028/www.scientific.net/KEM.368-372.147

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Synthesis of (1–x) CaTiO₃–xNdAlO₃ Ceramic Powder via Ethylenediaminetetraacetic Acid Precursor
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372Synthesis of (1–x) CaTiO3–xNdAlO3 Ceramic Powder...

Synthesis of (1–x) CaTiO₃–xNdAlO₃ Ceramic Powder via Ethylenediaminetetraacetic Acid Precursor

Abstract:

(1–x)CaTiO3–xNdAlO3 (CTNA) microwave dielectric ceramics have a high Q value and a low temperature coefficient of resonant frequency ( τf ). CTNA ceramic powder was synthesized using a polymeric precursor derived from a mixed-metal ethylenediaminetetraacetic acid (EDTA) / ethylene glycol solution. The precursors and derived oxide powders were characterized by thermogravimetric analysis and X-ray diffraction. When x = 0.3, CTNA was synthesized at 900°C for 3 h in air. Compared with that prepared by the solid-state reaction method in literatures, the CTNA ( x = 0.3 ) ceramics with better microwave properties could be obtained at lower calcination and sintering temperatures by EDTA chelating method.

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Key Engineering Materials (Volumes 368-372)

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147-149

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.147

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Online since:

February 2008

Authors:

Guo Hua Huang, Jian Mei Xu, Yan Yun Tang, Jin Li Huang, Ping Ying Tang, Dong Xiang Zhou

Keywords:

CaTiO₃, EDTA, Microwave Dielectric Ceramics, Powder

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