The effect of ceria co-doping on chemical stability and fracture toughness of Y-TZP

M.M.R. Boutz; A.J.A. Winnubst; B. van Langerak; R.J.M. Olde Scholtenhuis; K. Kreuwel; A.J. Burggraaf

doi:10.1007/BF00351622

The effect of ceria co-doping on chemical stability and fracture toughness of Y-TZP

M.M.R. Boutz, A.J.A. Winnubst, B. van Langerak, R.J.M. Olde Scholtenhuis, K. Kreuwel, A.J. Burggraaf

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Abstract

The fracture toughness and ageing resistance of yttria, ceria-stabilized tetragonal zirconia polycrystals (Y, Ce-TZP) were evaluated as a function of grain size and ceria content. Very fine grained, fully dense materials could be produced by sinter forging at relatively low temperatures (1150–1200 °C). The ageing resistance in hot water (185 °C) of 2 mol% Y2O3-stabilized TZP is strongly enhanced by alloying with ceria. The ceria content necessary to avoid degradation completely, decreases with grain size. The toughness of fully dense Y, Ce-TZP is 7–9 MPa m1/2 for grain sizes down to 0.2 mgrm. No or very little transformation took place during fracturing and no clear variation with grain size was observed for the toughness at grain sizes up to 0.8 mgrm. Reversible transformation and crack deflection may explain the observed toughness values.

Original language	English
Pages (from-to)	1854-1862
Number of pages	9
Journal	Journal of materials science
Volume	30
Issue number	7
DOIs	https://doi.org/10.1007/BF00351622
Publication status	Published - 1995

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title = "The effect of ceria co-doping on chemical stability and fracture toughness of Y-TZP",

abstract = "The fracture toughness and ageing resistance of yttria, ceria-stabilized tetragonal zirconia polycrystals (Y, Ce-TZP) were evaluated as a function of grain size and ceria content. Very fine grained, fully dense materials could be produced by sinter forging at relatively low temperatures (1150–1200 °C). The ageing resistance in hot water (185 °C) of 2 mol% Y2O3-stabilized TZP is strongly enhanced by alloying with ceria. The ceria content necessary to avoid degradation completely, decreases with grain size. The toughness of fully dense Y, Ce-TZP is 7–9 MPa m1/2 for grain sizes down to 0.2 mgrm. No or very little transformation took place during fracturing and no clear variation with grain size was observed for the toughness at grain sizes up to 0.8 mgrm. Reversible transformation and crack deflection may explain the observed toughness values.",

author = "M.M.R. Boutz and A.J.A. Winnubst and {van Langerak}, B. and {Olde Scholtenhuis}, R.J.M. and K. Kreuwel and A.J. Burggraaf",

year = "1995",

doi = "10.1007/BF00351622",

language = "English",

volume = "30",

pages = "1854--1862",

journal = "Journal of materials science",

issn = "0022-2461",

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T1 - The effect of ceria co-doping on chemical stability and fracture toughness of Y-TZP

AU - Boutz, M.M.R.

AU - Winnubst, A.J.A.

AU - van Langerak, B.

AU - Olde Scholtenhuis, R.J.M.

AU - Kreuwel, K.

AU - Burggraaf, A.J.

PY - 1995

Y1 - 1995

N2 - The fracture toughness and ageing resistance of yttria, ceria-stabilized tetragonal zirconia polycrystals (Y, Ce-TZP) were evaluated as a function of grain size and ceria content. Very fine grained, fully dense materials could be produced by sinter forging at relatively low temperatures (1150–1200 °C). The ageing resistance in hot water (185 °C) of 2 mol% Y2O3-stabilized TZP is strongly enhanced by alloying with ceria. The ceria content necessary to avoid degradation completely, decreases with grain size. The toughness of fully dense Y, Ce-TZP is 7–9 MPa m1/2 for grain sizes down to 0.2 mgrm. No or very little transformation took place during fracturing and no clear variation with grain size was observed for the toughness at grain sizes up to 0.8 mgrm. Reversible transformation and crack deflection may explain the observed toughness values.

AB - The fracture toughness and ageing resistance of yttria, ceria-stabilized tetragonal zirconia polycrystals (Y, Ce-TZP) were evaluated as a function of grain size and ceria content. Very fine grained, fully dense materials could be produced by sinter forging at relatively low temperatures (1150–1200 °C). The ageing resistance in hot water (185 °C) of 2 mol% Y2O3-stabilized TZP is strongly enhanced by alloying with ceria. The ceria content necessary to avoid degradation completely, decreases with grain size. The toughness of fully dense Y, Ce-TZP is 7–9 MPa m1/2 for grain sizes down to 0.2 mgrm. No or very little transformation took place during fracturing and no clear variation with grain size was observed for the toughness at grain sizes up to 0.8 mgrm. Reversible transformation and crack deflection may explain the observed toughness values.

U2 - 10.1007/BF00351622

DO - 10.1007/BF00351622

M3 - Article

SN - 0022-2461

VL - 30

SP - 1854

EP - 1862

JO - Journal of materials science

JF - Journal of materials science

IS - 7

ER -

The effect of ceria co-doping on chemical stability and fracture toughness of Y-TZP

Abstract

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