Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10841
Title: KxNa1 - xNbO3 powder synthesized by molten-salt process
Authors: Zeng, JT
Kwok, KW 
Chan, HLW 
Keywords: Ferroelectrics
Perovskites
Piezoelectric materials
Powder technology
Issue Date: 2007
Publisher: North-Holland
Source: Materials letters, 2007, v. 61, no. 2, p. 409-411 How to cite?
Journal: Materials letters 
Abstract: KxNa1 - xNbO3 ceramic powders have been successfully synthesized in different salts (NaCl, KCl, NaCl-KCl). Our results reveal that KxNa1 - xNbO3 powders with single-phase perovskite structure can be formed at a low temperature such as 750 °C. The type of salts has significant effects on the morphology and chemical composition of the powders. As Na+ has a higher diffusing rate and occupies the A-site in the perovskite structure more easily as compared to K+, the powder contains only a small amount of K+ (x ∼ 0.10) when it is synthesized according to formula K0.5Na0.5NbO3 and in a flux containing the same molar content of Na+ and K+. By using a NaCl or KCl salt, the K+ concentration x can be adjusted to almost 0 and 0.77, respectively.
URI: http://hdl.handle.net/10397/10841
ISSN: 0167-577X
EISSN: 1873-4979
DOI: 10.1016/j.matlet.2006.04.083
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