Vögler, Malte ; Acosta, Matias ; Brandt, David R. J. ; Molina-Luna, Leopoldo ; Webber, Kyle G. (2015)
Temperature-dependent R-curve behavior of the lead-free ferroelectric 0.615Ba(Zr0.2Ti0.8)O3–0.385(Ba0.7Ca0.3)TiO3 ceramic.
In: Engineering Fracture Mechanics, 144
doi: 10.1016/j.engfracmech.2015.06.069
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The temperature-dependent crack growth resistance behavior of the lead-free (1 − x)Ba(Zr0.2Ti0.8)O3–x(Ba0.7Ca0.3)TiO3 (x = 0.385) ceramic was characterized using compact-tension specimens from 25 °C to 60 °C. The observed plateau fracture toughness at 25 °C was found to be approximately 37% lower than commercial Pb(Zr,Ti)O3. At elevated temperature, the maximum fracture toughness displayed a decrease, which was found to be related to the temperature-dependent elastic and ferroelastic properties. Mechanical measurements are presented that demonstrate decreasing effective switching strain, coercive stress and Young’s modulus with increasing temperature.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Vögler, Malte ; Acosta, Matias ; Brandt, David R. J. ; Molina-Luna, Leopoldo ; Webber, Kyle G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Temperature-dependent R-curve behavior of the lead-free ferroelectric 0.615Ba(Zr0.2Ti0.8)O3–0.385(Ba0.7Ca0.3)TiO3 ceramic |
| Sprache: | Englisch |
| Publikationsjahr: | August 2015 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Engineering Fracture Mechanics |
| Jahrgang/Volume einer Zeitschrift: | 144 |
| DOI: | 10.1016/j.engfracmech.2015.06.069 |
| Kurzbeschreibung (Abstract): | The temperature-dependent crack growth resistance behavior of the lead-free (1 − x)Ba(Zr0.2Ti0.8)O3–x(Ba0.7Ca0.3)TiO3 (x = 0.385) ceramic was characterized using compact-tension specimens from 25 °C to 60 °C. The observed plateau fracture toughness at 25 °C was found to be approximately 37% lower than commercial Pb(Zr,Ti)O3. At elevated temperature, the maximum fracture toughness displayed a decrease, which was found to be related to the temperature-dependent elastic and ferroelastic properties. Mechanical measurements are presented that demonstrate decreasing effective switching strain, coercive stress and Young’s modulus with increasing temperature. |
| Freie Schlagworte: | Fracture mechanics; Crack growth; R-curve; BZT–BCT; Ferroelasticity |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Elektronenmikroskopie 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektromechanik von Oxiden 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 06 Jul 2015 11:02 |
| Letzte Änderung: | 10 Dez 2018 08:14 |
| PPN: | |
| Sponsoren: | This work was supported by the Deutsche Forschungsgemeinschaft through the Sonderforschungsbereich 595 “Electrical Fatigue in Functional Materials” and the AdRIA Hesse state center for Adaptronics., K.G.W. gratefully acknowledges the financial support of the Deutsche Forschungsgemeinschaft through WE4972/2-1. |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum