| Autor: |
M. Adamczyk-Habrajska, T. Goryczka, D. Szalbot, J. Dzik, M. Rerak, D. Bochenek |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Archives of Metallurgy and Materials, Vol vol. 65, Iss No 1, Pp 207-214 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2300-1909 |
| DOI: |
10.24425/amm.2019.131116 |
| Popis: |
The paper reports the consequences of lanthanum modifications of barium bismuth niobiate (BaBi2Nb2O9) ceramics. The discussed materials were prepared by solid state synthesis and a one-step sintering process. The investigations are focused on dielectric aspects of the modification. The presented results reveal that the trivalent lanthanum ions incorporate twovalent barium ions, which is connected with the creation of A-site cationic vacancies as well as oxygen vacancies. Such a scenario results in significant decreasing in grain boundaries resistivity. The activation energy of grain boundaries conductivity is significantly reduced in the case of lanthanum admixture. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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