Characterization of residual stresses in zirconia veneered bilayers assessed via sharp and blunt indentation

Highlights • Residual stress in the veneers was quantified by means of Vickers indentation. • Effect of σR on Hertzian cone crack propagation was determined. • The CTE mismatch had a dominant role in generation of σR gradients. • Fast cooling did not significantly affect the σR gradients. • High com...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Dental materials 2015-08, Vol.31 (8), p.948-957
Hauptverfasser:	Wendler, Michael, Belli, Renan, Petschelt, Anselm, Lohbauer, Ulrich
Format:	Artikel
Sprache:	eng
Schlagworte:	Advanced Basic Science Bilayer Ceramics - chemistry Compressive Strength Cooling rate Crack propagation Dental Restoration Failure Dental Stress Analysis - methods Dental Veneers Dentistry Fracture mechanics Hertzian cone cracks Lava Materials Testing Residual stress Stress concentration Stress, Mechanical Stresses Surface Properties Thermal mismatch Veneer Veneers Vickers indentation Zirconia Zirconium - chemistry Zirconium dioxide
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Highlights • Residual stress in the veneers was quantified by means of Vickers indentation. • Effect of σR on Hertzian cone crack propagation was determined. • The CTE mismatch had a dominant role in generation of σR gradients. • Fast cooling did not significantly affect the σR gradients. • High compressive σR hindered crack propagation toward the interface.
ISSN:	0109-5641 1879-0097
DOI:	10.1016/j.dental.2015.05.001