Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method
The synthesis and structural properties of lead-free piezoelectric (K0.5Na0.5)NbO3 powders prepared by mechanochemical method using Nb2O5, K2CO3, and Na2CO3 as starting materials were reported. X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy were used t...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/230216 |
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| _version_ | 1832546062307426304 |
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| author | Nguyen Duc Van |
| author_facet | Nguyen Duc Van |
| author_sort | Nguyen Duc Van |
| collection | DOAJ |
| description | The synthesis and structural properties of lead-free piezoelectric (K0.5Na0.5)NbO3 powders prepared by mechanochemical method using Nb2O5, K2CO3, and Na2CO3 as starting materials were reported. X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy were used to characterize the prepared samples. Results showed that, for the first time, by selecting the milling speed of 600 rpm and the ball-to-powder weight ratio of 35 : 1 as milling parameters, pure (K0.5Na0.5)NbO3 crystalline phase was obtained directly in the as-milled samples after 5 h of milling time. The existence of a carbonato complex between CO32− and Nb5+ ions as an intermediate species of the formation of (K0.5Na0.5)NbO3 was also found. |
| format | Article |
| id | doaj-art-5f6136bdc4ae4655ba0d589ead6c5350 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5f6136bdc4ae4655ba0d589ead6c53502025-02-03T07:23:53ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/230216230216Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical MethodNguyen Duc Van0Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 10000, VietnamThe synthesis and structural properties of lead-free piezoelectric (K0.5Na0.5)NbO3 powders prepared by mechanochemical method using Nb2O5, K2CO3, and Na2CO3 as starting materials were reported. X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy were used to characterize the prepared samples. Results showed that, for the first time, by selecting the milling speed of 600 rpm and the ball-to-powder weight ratio of 35 : 1 as milling parameters, pure (K0.5Na0.5)NbO3 crystalline phase was obtained directly in the as-milled samples after 5 h of milling time. The existence of a carbonato complex between CO32− and Nb5+ ions as an intermediate species of the formation of (K0.5Na0.5)NbO3 was also found.http://dx.doi.org/10.1155/2013/230216 |
| spellingShingle | Nguyen Duc Van Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method Advances in Materials Science and Engineering |
| title | Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method |
| title_full | Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method |
| title_fullStr | Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method |
| title_full_unstemmed | Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method |
| title_short | Direct Synthesis of (K0.5Na0.5)NbO3 Powders by Mechanochemical Method |
| title_sort | direct synthesis of k0 5na0 5 nbo3 powders by mechanochemical method |
| url | http://dx.doi.org/10.1155/2013/230216 |
| work_keys_str_mv | AT nguyenducvan directsynthesisofk05na05nbo3powdersbymechanochemicalmethod |