Effects of NdAlO3 Additives on the Properties of Ba4.2Nd9.2Ti18O54 Ceramics

Abstract

Abstract: The effects of NdAlO₃ additives on the microstructure and the dielectric properties of Ba_4.2Nd_9.2Ti₁₈O ₅₄ (BNT) materials were investigated.
The microstructure of BNT doped with NdAlO3 was analyzed by X-ray diffraction and FESEM. The results show that the solid solutions are
formed between Ba_4.2Nd_9.2Ti₁₈O₅₄ and the NdAlO₃ additives. The relative permittivity and the TCf values show a linear
decrease with the increase of NdAlO₃ additive. The Q values exhibit a non-linear behaviour and reach maximiun (11400GHz) for the NdAlO₃
additive at approximately 10wt%, while the relative permittivity and the TCf values are 66.29 (3.5GHz) and -0.7ppm/℃, respectively.

Key words: microwave dielectric properties, Ba_4.2Nd_9.2Ti₁₈O₅₄, NdAlO₃, tungsten-bronzes structure

CLC Number:

TB321

Lü Wen-Zhong,ZHU Jian-Hua,Eric Rop Kipkoech. Effects of NdAlO₃ Additives on the Properties of Ba_4.2Nd_9.2Ti₁₈O₅₄ Ceramics[J]. Journal of Inorganic Materials.

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Effects of NdAlO₃ Additives on the Properties of Ba_4.2Nd_9.2Ti₁₈O₅₄ Ceramics

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