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R-curves in transformation toughened lead zirconate titanate

Rödel, Jürgen ; Seo, Yo-Han ; Benčan, Andreja ; Malič, Barbara ; Kosec, Marija ; Webber, Kyle G. (2013)
R-curves in transformation toughened lead zirconate titanate.
In: Engineering Fracture Mechanics, 100
doi: 10.1016/j.engfracmech.2012.06.023
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Composites from lead zirconate titanate (PZT) and yttria stabilized zirconia were manufactured to assess cracking and R-curve behavior in compact tension specimens. Additions of zirconia led to a reduction in PZT grain size and shifted the fracture behavior from intergranular fracture to intragranular fracture. The R-curves exhibited higher starting values, a steeper slope and a higher plateau value with increasing content of zirconia, albeit the effects on the toughness values were not more than 20%. The results are rationalized through increased crack tip toughness, reduced ferroelastic toughening and enhanced transformation toughening.

Typ des Eintrags: Artikel
Erschienen: 2013
Autor(en): Rödel, Jürgen ; Seo, Yo-Han ; Benčan, Andreja ; Malič, Barbara ; Kosec, Marija ; Webber, Kyle G.
Art des Eintrags: Bibliographie
Titel: R-curves in transformation toughened lead zirconate titanate
Sprache: Englisch
Publikationsjahr: März 2013
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Engineering Fracture Mechanics
Jahrgang/Volume einer Zeitschrift: 100
DOI: 10.1016/j.engfracmech.2012.06.023
Kurzbeschreibung (Abstract):

Composites from lead zirconate titanate (PZT) and yttria stabilized zirconia were manufactured to assess cracking and R-curve behavior in compact tension specimens. Additions of zirconia led to a reduction in PZT grain size and shifted the fracture behavior from intergranular fracture to intragranular fracture. The R-curves exhibited higher starting values, a steeper slope and a higher plateau value with increasing content of zirconia, albeit the effects on the toughness values were not more than 20%. The results are rationalized through increased crack tip toughness, reduced ferroelastic toughening and enhanced transformation toughening.

Freie Schlagworte: Lead zirconate titanate; Ferroelasticity; Transformation toughening; R-curve; Microstructure
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektromechanik von Oxiden
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe
Hinterlegungsdatum: 04 Apr 2013 09:31
Letzte Änderung: 27 Feb 2014 14:39
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