| Autor: |
Fen Ye, Xiangping Jiang, Xiaokun Huang, Xin Nie, Chao Chen, Hao Cheng, Renfen Zeng |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 15, Iss , Pp 5833-5840 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2021.11.030 |
| Popis: |
NaNbO3 powder was synthesized via the polyacrylamide gel method, growth behaviors and associated morphology were discussed. The calcined NaNbO3 powder at 565 °C possess cubic and long columnar morphology which are NaNbO3 and Na/Nb/F or Na/Nb/F/O compounds, respectively. According to XRD and SEM, as calcined temperature raised, the amount of F in Na/Nb/F or Na/Nb/F/O compounds gradually reduced, long columnar compounds resolved into cubic NaNbO3. These changes made the NaNbO3 powder which calcined at 565 °C obtain highly sintering activity, dense NaNbO3 ceramic can sintering at 1200 °C. NaNbO3 ceramic densification was caused by the large ionic radius O2− replaced the small ionic radius F− during the calcining process. Compared with the solid–state reaction method, the sintering temperature of NaNbO3 ceramic was be reduced in this work, which contribute for low-temperature sintering technical of NaNbO3 ceramics. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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