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| 001 | 887826 | ||
| 005 | 20240711085632.0 | ||
| 024 | 7 | _ | |a 10.1016/j.actamat.2018.12.007 |2 doi |
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| 100 | 1 | _ | |a Rheinheimer, Wolfgang |0 P:(DE-Juel1)185039 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a The role of point defects and defect gradients in flash sintering of perovskite oxides |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2019 |b Elsevier Science |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a The present study investigates the impact of point defects and their redistribution on the flash sintering process. Strontium titanate was chosen as a model system for the group of perovskite ceramics. The characteristics of flash sintering of strontium titanate were analyzed with different acceptor dopant concentrations. The onset of flash sintering was found to be dependent on the acceptor dopant concentration, as expected by the increasing conductivity. A gradient in the microstructure was found after flash sintering with larger grain sizes at the negative electrode. TEM-EDS measurements indicated Ti enrichment at the positive electrode for undoped strontium titanate and strong acceptor segregation for doped strontium titanate. In contrast, grain boundaries at the negative electrode were found to be stoichiometric for the undoped case and the acceptor segregation was less obvious for the doped case. |
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| 700 | 1 | _ | |a Phuah, Xin Li |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Wang, Han |0 P:(DE-Juel1)171441 |b 2 |u fzj |
| 700 | 1 | _ | |a Lemke, Fabian |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Hoffmann, Michael J. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Wang, Haiyan |0 P:(DE-HGF)0 |b 5 |
| 773 | _ | _ | |a 10.1016/j.actamat.2018.12.007 |g Vol. 165, p. 398 - 408 |0 PERI:(DE-600)2014621-8 |p 398 - 408 |t Acta materialia |v 165 |y 2019 |x 1359-6454 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/887826/files/Rhe19.pdf |y Restricted |
| 856 | 4 | _ | |y Published on 2018-12-07. Available in OpenAccess from 2019-12-07. |u https://juser.fz-juelich.de/record/887826/files/manuscript.pdf |
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