Zhuo, Fangping ; Zhou, Xiandong ; Dietrich, Felix ; Soleimany, Mehrzad ; Breckner, Patrick ; Groszewicz, Pedro B. ; Xu, Bai-Xiang ; Buntkowsky, Gerd ; Rödel, Jürgen (2024)
Dislocation density-mediated functionality in single-crystal BaTiO3.
In: Advanced Science, 11 (31)
doi: 10.1002/advs.202403550
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Unlike metals wheredislocationscarrystrain singularitybut no charge, dislocationsinoxideceramicsare characterized bybotha strain field and a localcharge witha compensating charge envelope. Oxide ceramicswiththeir deliberate engineeringand manipulationarepivotalinnumerousmodern technologies such assemiconductors, superconductors, solar cells, and ferroics.Dislocations facilitateplastic deformationinmetals and leadto a monotonous increase inthe strength ofmetallicmaterialsinaccordance with the widelyrecognized Taylorhardeninglaw.However,achievingthe objective oftailoring the functionality ofoxide ceramicsbydislocation density still remainselusive.Hereastrategytoimprintdislocationswith{100}<100>slip systems and atenfold change in dislocationdensity ofBaTiO3 single crystals usinghigh-temperature uniaxialcompressionare reported.Througha dislocation density-based approach,dielectric permittivity,converse piezoelectriccoefficient, and alternating currentconductivity aretailored, exhibiting apeak atmedium dislocationdensity. Combined with phase-field simulationsand domainwallpotential energy analyses, the dislocation-density-based design inbulk ferroelectricsismechanistically rationalized.These findings mayprovidea new dimensionforemploying plasticstrainengineeringto tune the electrical propertiesofferroics, potentiallypavingthe wayforadvancing dislocationtechnology infunctional ceramics.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Zhuo, Fangping ; Zhou, Xiandong ; Dietrich, Felix ; Soleimany, Mehrzad ; Breckner, Patrick ; Groszewicz, Pedro B. ; Xu, Bai-Xiang ; Buntkowsky, Gerd ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Dislocation density-mediated functionality in single-crystal BaTiO3 |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Juni 2024 |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Science |
| Jahrgang/Volume einer Zeitschrift: | 11 |
| (Heft-)Nummer: | 31 |
| DOI: | 10.1002/advs.202403550 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Unlike metals wheredislocationscarrystrain singularitybut no charge, dislocationsinoxideceramicsare characterized bybotha strain field and a localcharge witha compensating charge envelope. Oxide ceramicswiththeir deliberate engineeringand manipulationarepivotalinnumerousmodern technologies such assemiconductors, superconductors, solar cells, and ferroics.Dislocations facilitateplastic deformationinmetals and leadto a monotonous increase inthe strength ofmetallicmaterialsinaccordance with the widelyrecognized Taylorhardeninglaw.However,achievingthe objective oftailoring the functionality ofoxide ceramicsbydislocation density still remainselusive.Hereastrategytoimprintdislocationswith{100}<100>slip systems and atenfold change in dislocationdensity ofBaTiO3 single crystals usinghigh-temperature uniaxialcompressionare reported.Througha dislocation density-based approach,dielectric permittivity,converse piezoelectriccoefficient, and alternating currentconductivity aretailored, exhibiting apeak atmedium dislocationdensity. Combined with phase-field simulationsand domainwallpotential energy analyses, the dislocation-density-based design inbulk ferroelectricsismechanistically rationalized.These findings mayprovidea new dimensionforemploying plasticstrainengineeringto tune the electrical propertiesofferroics, potentiallypavingthe wayforadvancing dislocationtechnology infunctional ceramics. |
| ID-Nummer: | Artikel-ID: 2403550 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 19 Jun 2024 08:30 |
| Letzte Änderung: | 05 Nov 2024 06:46 |
| PPN: | 519257456 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
-
Dislocation Density‐Mediated Functionality in Single‐Crystal BaTiO₃. (deposited 04 Nov 2024 13:14)
- Dislocation density-mediated functionality in single-crystal BaTiO3. (deposited 19 Jun 2024 08:30) [Gegenwärtig angezeigt]
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