Preparation and Characterization of Lead-Free Na0.54K0.42Li0.04NbO3 Nano-Powders by Sol-Gel Method
In this paper, Na0.54K0.42Li0.4NbO3 nano-powders were prepared by the sol-gel method, Na2CO3, K2CO3, Li2CO3 and 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.
Yiwang Bao, Danyu Jiang, Li Tian and Jianghong Gong
G. Z. Gao et al., "Preparation and Characterization of Lead-Free Na0.54K0.42Li0.04NbO3 Nano-Powders by Sol-Gel Method", Key Engineering Materials, Vol. 492, pp. 198-201, 2012