Slow crack propagation in Y-TZP/metal composites

The paper presents results of investigation on slow crack propagation of two composites in TZP/metal system, where 10 vol.% of tungsten and molybdenum were used as dispersed phase. The mean grain size of the inclusions was about 2 μm. Composites were prepared by intensive attrition milling/mixing of...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of the European Ceramic Society 2006, Vol.26 (4), p.679-682
Hauptverfasser:	Pędzich, Zbigniew, Wajler, Cezary
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building materials. Ceramics. Glasses Ceramic industries Cermets, ceramic and refractory composites Chemical industry and chemicals Composites Cross-disciplinary physics: materials science rheology Double Torsion Testing Exact sciences and technology Fracture Materials science Miscellaneous Other materials Physics Specific materials Technical ceramics Toughness and toughening ZrO 2
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The paper presents results of investigation on slow crack propagation of two composites in TZP/metal system, where 10 vol.% of tungsten and molybdenum were used as dispersed phase. The mean grain size of the inclusions was about 2 μm. Composites were prepared by intensive attrition milling/mixing of the constituent phases in ethyl alcohol and densified by hot-pressing at 1500 °C under 25 MPa in argon atmosphere. Strength, fracture toughness and hardness were investigated. The threshold value ( K I0 ) of slow crack propagation is higher for both composite materials when compared with TZP. Both investigated composites show similar K I0 values and maximum values of the critical stress intensity factor ( K Ic ) by using different methods.
ISSN:	0955-2219 1873-619X
DOI:	10.1016/j.jeurceramsoc.2005.06.005