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Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens

  • D. Gronych , M. Auhorn , T. Beck EMAIL logo , V. Schulze and D. Löhe
Published/Copyright: February 14, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 95 Issue 6

Abstract

Bending tests on slip-cast ceramic micro-specimens made of Y2O3-stabilised ZrO2 of the dimensions 0.2 × 0.2 × 1.2 mm3 were performed. Despite nominally identical feedstock make-up as well as identical parameters for slip-casting, debinding and sintering, the bending strengths of three process batches scatter between 1400 and 3400 MPa. As reasons for the scattering of the mechanical properties, surface defects and differently sized edge radii were determined. Correlations between surface roughness, edge radius and bending strength of the micro-specimens are presented. Additionally, the validity of the Weibull size effect could be confirmed with micro-specimens that have relatively smooth surfaces (peak-to-valley heights Rt between 0.5 and 1.5 μm) and relatively large edge radii (between 11 and 18 μm).

Keywords: Zirconia; Slip-casting; Micro-specimen; Bending test; Size effect
Dr.-Ing. Tilmann Beck Universität Karlsruhe (TH) IWK I, Institut für Werkstoffkunde I Kaiserstr. 12 D-76131 Karlsruhe Germany Tel.: +49 721 608 4159 Fax: +49 721 608 7451

Dedicated to Professor Dr. Peter Neumann on the occasion of his 65th birthday

  1. The presented research was carried out as part of the Collaborative Research Centre 499 (SFB 499) located in Karlsruhe, Germany. The support of the Deutsche Forschungsgemeinschaft is gratefully acknowledged. The authors appreciate the cooperation of all project partners within the SFB 499. Additionally the authors would like to thank Dr. Theo Fett for a spontaneous and very fruitful discussion.

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Received: 2004-01-08
Accepted: 2004-02-18
Published Online: 2022-02-14

© 2004 Carl Hanser Verlag, München

Articles in the same Issue

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  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Thermally assisted motion of dislocations in solid solution-strengthened fcc alloys and the concept of “stress equivalence”
  6. From single to collective dislocation glide instabilities: A hierarchy of scales, embracing the Neumann strain bursts
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  10. The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: the role of slip bands emerging at the polymer/metal interface
  11. Influence of dissolved gas molecules on the size recovery kinetics of cold-rolled BPA-PC
  12. Comparison between Monte Carlo and Cluster Variation method calculations in the BCC Fe–Al system including tetrahedron interactions
  13. Experimental study and Cluster Variation modelling of the A2/B2 equilibria at the titanium-rich side of the Ti–Fe system
  14. Phases and phase equilibria in the Fe–Al–Zr system
  15. On the plate-like τ-phase formation in MnAl–C alloys
  16. Articles Applied
  17. The grain boundary hardness in austenitic stainless steels studied by nanoindentations
  18. The effect of grain size on the mechanical properties of nanonickel examined by nanoindentation
  19. Microstructures and mechanical properties of V–V3Si eutectic composites
  20. Grain boundary characterization and grain size measurement in an ultrafine-grained steel
  21. On the determination of the volume fraction of Ni4Ti3 precipitates in binary Ni-rich NiTi shape memory alloys
  22. Mechanical properties of NiAl–Cr alloys in relation to microstructure and atomic defects
  23. Characterization of the cyclic deformation behaviour and fatigue crack initiation on titanium in physiological media by electrochemical techniques
  24. Effect of prestraining on high-temperature fatigue behaviour of two Ni-base superalloys
  25. Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens
  26. Tensile failure in a superplastic alumina
  27. Notifications/Mitteilungen
  28. Personal/Personelles
  29. Conferences/Konferenzen
https://doi.org/10.1515/ijmr-2004-0106
Keywords for this article
Zirconia; Slip-casting; Micro-specimen; Bending test; Size effect

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Thermally assisted motion of dislocations in solid solution-strengthened fcc alloys and the concept of “stress equivalence”
  6. From single to collective dislocation glide instabilities: A hierarchy of scales, embracing the Neumann strain bursts
  7. Geometry and surface state effects on the mechanical response of Au nanostructures
  8. Microstructural evolution and its effect on the mechanical properties of Cu–Ag microcomposites
  9. Deformation behaviour of strontium titanate between room temperature and 1800 K under ambient pressure
  10. The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: the role of slip bands emerging at the polymer/metal interface
  11. Influence of dissolved gas molecules on the size recovery kinetics of cold-rolled BPA-PC
  12. Comparison between Monte Carlo and Cluster Variation method calculations in the BCC Fe–Al system including tetrahedron interactions
  13. Experimental study and Cluster Variation modelling of the A2/B2 equilibria at the titanium-rich side of the Ti–Fe system
  14. Phases and phase equilibria in the Fe–Al–Zr system
  15. On the plate-like τ-phase formation in MnAl–C alloys
  16. Articles Applied
  17. The grain boundary hardness in austenitic stainless steels studied by nanoindentations
  18. The effect of grain size on the mechanical properties of nanonickel examined by nanoindentation
  19. Microstructures and mechanical properties of V–V3Si eutectic composites
  20. Grain boundary characterization and grain size measurement in an ultrafine-grained steel
  21. On the determination of the volume fraction of Ni4Ti3 precipitates in binary Ni-rich NiTi shape memory alloys
  22. Mechanical properties of NiAl–Cr alloys in relation to microstructure and atomic defects
  23. Characterization of the cyclic deformation behaviour and fatigue crack initiation on titanium in physiological media by electrochemical techniques
  24. Effect of prestraining on high-temperature fatigue behaviour of two Ni-base superalloys
  25. Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens
  26. Tensile failure in a superplastic alumina
  27. Notifications/Mitteilungen
  28. Personal/Personelles
  29. Conferences/Konferenzen
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