Enhanced grain growth in lead-free (1-x)(Na<inf>0.5</inf>Bi<inf>0.5</inf>)TiO<inf>3</inf>- XAgNbO<inf>3</inf>solid solution ceramics
The lead-free (1-x)(Na 0.5 Bi 0.5 )TiO 3 - xAgNbO 3 (x = 0.00-0.15) ceramics were synthesized by solid state reaction. Anomaly large grain growth was observed by scanning electron microscopy with an average grain size reaching 90 μm for x = 0.02. The incorporation of AgNbO 3 into (Na 0.5 Bi 0.5 ) Ti...
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| Main Authors: | , , , , |
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| 格式: | 雜誌 |
| 出版: |
2018
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| 在線閱讀: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84900387717&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45491 |
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| 總結: | The lead-free (1-x)(Na 0.5 Bi 0.5 )TiO 3 - xAgNbO 3 (x = 0.00-0.15) ceramics were synthesized by solid state reaction. Anomaly large grain growth was observed by scanning electron microscopy with an average grain size reaching 90 μm for x = 0.02. The incorporation of AgNbO 3 into (Na 0.5 Bi 0.5 ) TiO 3 led to highly dense ceramics without the addition of binder or sintering aid. The ceramics are slightly deficient in bismuth on the surface, which caused the formation of Na 2 Ti 6 O 13 whiskers. These whiskers can be removed by polishing for subsequent piezoelectric and ferroelectric characterizations. |
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