Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3.
Strontium bismuth titanate samples (SBT) doped with 4-mol % of MnO2 (SBT + Mn) or Nd2O3 (SBT + Nd) were produced by conventional oxide mixture method. The structural, dielectric and piezoelectric properties were compared between the pure and doped ceramics. The aspect ratio of the grains (Width/Thi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Portuguese |
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Universidade de Fortaleza
2009-05-01
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| Series: | Revista Tecnologia |
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| Online Access: | https://periodicos.unifor.br/tec/article/view/51 |
| _version_ | 1818542529292795904 |
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| author | Maria Virginia Gelfuso José Antônio Eiras Daniel Thomazini |
| author_facet | Maria Virginia Gelfuso José Antônio Eiras Daniel Thomazini |
| author_sort | Maria Virginia Gelfuso |
| collection | DOAJ |
| description | Strontium bismuth titanate samples (SBT) doped with 4-mol % of MnO2 (SBT + Mn) or Nd2O3 (SBT + Nd) were produced by conventional oxide mixture method.
The structural, dielectric and piezoelectric properties were compared between the pure and doped ceramics. The aspect ratio of the grains (Width/Thickness – W/T) was modified with the addition of the dopants, being more evident in the SBT +
Mn ceramic than in the others. The neodymium addition increased the electromechanical coupling factor of the ceramics while the manganese doping favored the reduction of this parameter. The values of coercive field, saturation
and remanent polarization for the SBT + Mn ceramic were higher than that obtained to SBT and SBT + Nd ceramics. |
| first_indexed | 2024-12-11T22:23:16Z |
| format | Article |
| id | doaj.art-6c6be41d989c43d8bc4aa38f30237893 |
| institution | Directory Open Access Journal |
| issn | 0101-8191 2318-0730 |
| language | Portuguese |
| last_indexed | 2024-12-11T22:23:16Z |
| publishDate | 2009-05-01 |
| publisher | Universidade de Fortaleza |
| record_format | Article |
| series | Revista Tecnologia |
| spelling | doaj.art-6c6be41d989c43d8bc4aa38f302378932022-12-22T00:48:22ZporUniversidade de FortalezaRevista Tecnologia0101-81912318-07302009-05-0128249Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3.Maria Virginia Gelfuso0José Antônio EirasDaniel ThomaziniUniversidade de FortalezaStrontium bismuth titanate samples (SBT) doped with 4-mol % of MnO2 (SBT + Mn) or Nd2O3 (SBT + Nd) were produced by conventional oxide mixture method. The structural, dielectric and piezoelectric properties were compared between the pure and doped ceramics. The aspect ratio of the grains (Width/Thickness – W/T) was modified with the addition of the dopants, being more evident in the SBT + Mn ceramic than in the others. The neodymium addition increased the electromechanical coupling factor of the ceramics while the manganese doping favored the reduction of this parameter. The values of coercive field, saturation and remanent polarization for the SBT + Mn ceramic were higher than that obtained to SBT and SBT + Nd ceramics.https://periodicos.unifor.br/tec/article/view/51propriedades dielétricas. ferroelétrico. perovskitas. blsf. |
| spellingShingle | Maria Virginia Gelfuso José Antônio Eiras Daniel Thomazini Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3. Revista Tecnologia propriedades dielétricas. ferroelétrico. perovskitas. blsf. |
| title | Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3. |
| title_full | Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3. |
| title_fullStr | Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3. |
| title_full_unstemmed | Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3. |
| title_short | Properties of bismuth-strontium titanate ceramics doped with MnO2 and Nd2O3. |
| title_sort | properties of bismuth strontium titanate ceramics doped with mno2 and nd2o3 |
| topic | propriedades dielétricas. ferroelétrico. perovskitas. blsf. |
| url | https://periodicos.unifor.br/tec/article/view/51 |
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