Molten salt synthesis of acicular sodium strontium niobate particles |
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| Authors: | Liangliang Liu Feng Gao Jinjin Li Jiangnan Liu Guoxin Hu Huajun Sun |
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| Affiliation: | 1. State Key Laboratory of Solidification Processing, College of Material Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, PR China;2. School of Materials and Chemical Engineering, Xi’ an Technological University, Xi’an 710032, PR China;3. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China |
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| Abstract: | Acicular particles of Na0.5Sr0.25NbO3 and NaSr2Nb5O15 were successfully synthesized in the KSr2Nb5O15 + NaCl system and SrCO3 + Nb2O5 + NaCl + KCl system, respectively. It was found that the anisometric particles could not be obtained in the SrCO3 + Nb2O5 + NaCl system. A facile ion-exchange approach was utilized to prepare acicular Na0.5Sr0.25NbO3 particles. Acicular NaSr2Nb5O15 particles with large aspect ratio could be obtained at the weight ratio of salt-to-mixture of 5:1, which were ideal template for fabricating textured ceramics. The growth process was researched and the synthesis method was suggested to be a self-precursor templating route. The results will be propitious to guide the fabrication of other templates with anisotropic morphology which were hard to prepare directly. |
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| Keywords: | NaSr2Nb5O15 Molten salt synthesis Morphology Textured ceramics |
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