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An efficient approach for direct synthesis of K0.5Na0.5NbO3 powders

✍ Scribed by Haibo Yang; Ying Lin; Jianfeng Zhu; Fen Wang

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
420 KB
Volume
196
Category
Article
ISSN
0032-5910

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✦ Synopsis

K 0.5 Na 0.5 NbO 3 Low temperature Direct synthesis Pure K 0.5 Na 0.5 NbO 3 powders were prepared at low temperatures by an efficient method using Na 2 CO 3 , K 2 CO 3 and Nb 2 O 5 as raw materials and urea as fuel. The phase evolution of the powders was investigated by X-ray diffractometer (XRD) and thermo gravimetric analysis-differential scanning calorimeter (TG-DSC). The phase composition and morphology of the powders were characterized by electron probe microanalysis (EPMA) and scanning electron microscope (SEM), respectively. The results reveal that single-phase K 0.5 Na 0.5 NbO 3 powder can be obtained at 550 Β°C by the method. The as-prepared powder is stoichimetric, fine and well-developed.

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