Ren, Pengrong ; Höfling, Marion ; Koruza, Jurij ; Lauterbach, Stefan ; Jiang, Xijie ; Frömling, Till ; Khatua, Dipak Kumar ; Dietz, Christian ; Porz, Lukas ; Ranjan, Rajeev ; Kleebe, Hans‐Joachim ; Rödel, Jürgen (2023)
High temperature creep‐mediated functionality in polycrystalline barium titanate.
In: Journal of the American Ceramic Society, 2019, 103 (3)
doi: 10.26083/tuprints-00023203
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Dislocations in oxides can be described as charged line defects and means for one-dimensional doping, which can tune electrical and thermal properties. Furthermore, theoretically it was shown that dislocations can pin ferroelectric domain walls. Broader application of this concept hinges on the development of a methodology to avail this approach to polycrystalline ceramics. To this end, we use different creep mechanisms as a method to introduce multidimensional defects and quantify structural changes. A deformation map for fine-grained barium titanate is provided and the influences of the defects and creep regimes are correlated in this first study to modifications of electrical conductivity, dielectric, ferroelectric, and piezoelectric properties. A plastic deformation of 1.29% resulted in an increase in the Curie temperature by 5°C and a decrease in electromechanical strain by 30%, pointing toward electromechanical hardening by dislocations.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Ren, Pengrong ; Höfling, Marion ; Koruza, Jurij ; Lauterbach, Stefan ; Jiang, Xijie ; Frömling, Till ; Khatua, Dipak Kumar ; Dietz, Christian ; Porz, Lukas ; Ranjan, Rajeev ; Kleebe, Hans‐Joachim ; Rödel, Jürgen |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | High temperature creep‐mediated functionality in polycrystalline barium titanate |
| Sprache: | Englisch |
| Publikationsjahr: | 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2019 |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 103 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.26083/tuprints-00023203 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23203 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | Dislocations in oxides can be described as charged line defects and means for one-dimensional doping, which can tune electrical and thermal properties. Furthermore, theoretically it was shown that dislocations can pin ferroelectric domain walls. Broader application of this concept hinges on the development of a methodology to avail this approach to polycrystalline ceramics. To this end, we use different creep mechanisms as a method to introduce multidimensional defects and quantify structural changes. A deformation map for fine-grained barium titanate is provided and the influences of the defects and creep regimes are correlated in this first study to modifications of electrical conductivity, dielectric, ferroelectric, and piezoelectric properties. A plastic deformation of 1.29% resulted in an increase in the Curie temperature by 5°C and a decrease in electromechanical strain by 30%, pointing toward electromechanical hardening by dislocations. |
| Freie Schlagworte: | barium titanate, creep, dislocations, ferroelectricity/ferroelectric materials, piezoelectric materials/ properties |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-232035 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie |
| 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 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physics of Surfaces |
| Hinterlegungsdatum: | 10 Feb 2023 09:26 |
| Letzte Änderung: | 13 Feb 2023 06:39 |
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| Suche nach Titel in: | TUfind oder in Google |
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