Chaiyo, Nopsiri and Ruangphanit, Anucha and Muanghlua, Rangson and Niemcharoen, Surasak and Boonchom, Banjong and Vittayakorn, Naratip (2010) Synthesis of potassium niobate (KNbO(3)) nano-powder by a modified solid-state reaction. Springerlink, 46 (6). pp. 1585-1590.
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Official URL: http://springer.metapress.com/content/u3282g750400...
Crystalline lead-free piezoelectric potassium niobate (KNbO(3)) powders have been synthesized through a modified solid-state reaction method. The thermal behavior of the K(2)C(2)O(4)center dot H(2)O and Nb(2)O(5) raw material mixture was investigated by thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The X-ray diffraction technique (XRD) was used to investigate the phase formation and purity. The morphology of the powder obtained was characterized using a scanning electron microscope (SEM). The XRD pattern showed that the monophasic perovskite phase of KNbO(3) could be synthesized successfully at a temperature as low as 550 degrees C for 240 min, with an average crystallite size of 36 +/- 8 nm. The SEM images suggested that the average particle size of the powder obtained was 278 +/- 75 nm.
|Subjects:||Physical Science > Nanophysics|
|Deposited On:||23 May 2012 15:06|
|Last Modified:||23 May 2012 15:06|
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