Preparation and Characterization of Lead-Free Na0.54K0.42Li0.04NbO3 Nano-Powders by Sol-Gel Method

Guang Zhi Gao; Yan Gai Liu; Zhao Hui Huang; Ming Hao Fang

doi:10.4028/www.scientific.net/KEM.492.198

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 492Preparation and Characterization of Lead-Free...

Preparation and Characterization of Lead-Free Na_0.54K_0.42Li_0.04NbO₃ Nano-Powders by Sol-Gel Method

Abstract:

In this paper, Na_0.54K_0.42Li_0.4NbO3 nano-powders were prepared by the sol-gel method, Na₂CO₃, K₂CO₃, Li₂CO₃and Nb₂O₅ as raw materials, citric acid as coordination agent, ethylene glycol as esterifying agent, polyethylene glycol as dispersing agent. From the XRD, TG-DTA and TEM analysis, powders’ size, lattice constants and surface topography were studied. The results showed that under the condition of 600°C × 2h, nano-powders showed good dispersiveness and no reuniting, with pure orthorhombic perovskite structure and various grain sizes was 40.78 nm.

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Key Engineering Materials (Volume 492)

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198-201

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https://doi.org/10.4028/www.scientific.net/KEM.492.198

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September 2011

Authors:

Guang Zhi Gao, Yan Gai Liu, Zhao Hui Huang, Ming Hao Fang

Keywords:

Grain Size, Lead-Free Piezoelectric, Perovskite, Sol-Gel Method

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