Fang, Xufei ; Preuß, Oliver ; Breckner, Patrick ; Zhang, Jiawen ; Lu, Wenjun (2023)
Engineering dislocation-rich plastic zones in ceramics via room-temperature scratching.
In: Journal of the American Ceramic Society, 106 (8)
doi: 10.1111/jace.19140
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
In this communication, we demonstrate a simple but powerful method to engineer dislocations into large plastic zones in various single-crystal ceramic materials via room-temperature scratching. By using a Brinell indenter with a diameter of 2.5 mm, we successfully produced plastic zones with a width and depth of ∼150 μm in a single scratch track, while the length of the scratch track can be arbitrarily long depending on the sample size. Increasing the number of repetitive scratching cycles increases the dislocation density up to ∼1013 m−2 without visible crack formation. The outlined experimental procedure is showcased on single-crystal SrTiO3, MgO, ZnS, and CaF2 to demonstrate the general applicability of this technique. In light of the increasing research interest in dislocation-tuned functional andmechanical properties in ceramics, our method will serve as a simple, fast, and robust technique to pave the road for scaling up the required large plastic zones for dislocation engineering in ceramics.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Fang, Xufei ; Preuß, Oliver ; Breckner, Patrick ; Zhang, Jiawen ; Lu, Wenjun |
| Art des Eintrags: | Bibliographie |
| Titel: | Engineering dislocation-rich plastic zones in ceramics via room-temperature scratching |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Juni 2023 |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 106 |
| (Heft-)Nummer: | 8 |
| DOI: | 10.1111/jace.19140 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | In this communication, we demonstrate a simple but powerful method to engineer dislocations into large plastic zones in various single-crystal ceramic materials via room-temperature scratching. By using a Brinell indenter with a diameter of 2.5 mm, we successfully produced plastic zones with a width and depth of ∼150 μm in a single scratch track, while the length of the scratch track can be arbitrarily long depending on the sample size. Increasing the number of repetitive scratching cycles increases the dislocation density up to ∼1013 m−2 without visible crack formation. The outlined experimental procedure is showcased on single-crystal SrTiO3, MgO, ZnS, and CaF2 to demonstrate the general applicability of this technique. In light of the increasing research interest in dislocation-tuned functional andmechanical properties in ceramics, our method will serve as a simple, fast, and robust technique to pave the road for scaling up the required large plastic zones for dislocation engineering in ceramics. |
| Freie Schlagworte: | cyclic loading, dislocations in ceramics, room-temperature plasticity, scratching |
| 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 |
| Hinterlegungsdatum: | 02 Jun 2023 09:53 |
| Letzte Änderung: | 27 Nov 2023 07:34 |
| PPN: | 508369398 |
| Zugehörige Links: | |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Engineering dislocation‐rich plastic zones in ceramics via room‐temperature scratching. (deposited 24 Nov 2023 13:26)
- Engineering dislocation-rich plastic zones in ceramics via room-temperature scratching. (deposited 02 Jun 2023 09:53) [Gegenwärtig angezeigt]
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