| Autor: |
Vuttivong, Sirajit, Vittayakorn, Naratip |
| Předmět: |
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| Zdroj: |
Integrated Ferroelectrics; 2013, Vol. 149 Issue 1, p25-31, 7p |
| Abstrakt: |
In this research, potassium niobate (KNbO3) powder was synthesized successfully for 6–24 h in 15 M of KOH solutions at 120–200°C via the hydrothermal method. The effects of reaction temperatures and reaction times on the precipitation of KNbO3powders were investigated. A hydrothermal precursor yielded a pure single phase KNbO3for 18 h at 150°C. When the reaction time increased to 24 h, the morphology of KNbO3changed from an irregular shape to a rod- or bar-shape. The reaction temperature had a marked effect on both structure and phase formation, while the reaction time could affect morphology. The direct synthesis of KNbO3from Nb2O5and aqueous KOH under hydrothermal conditions therefore represents an easy method for the preparation of this compound. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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