Fett, Theo ; Munz, D. ; Kounga Njiwa, Alain Brice ; Rödel, Jürgen ; Quinn, G. D. (2005)
Bridging stresses in sintered reaction-bonded Si3N4 from COD measurements.
In: Journal of the European Ceramic Society, 25 (1)
doi: 10.1016/j.jeurceramsoc.2004.03.005
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Crack opening displacement measurements on a sintered reaction-bonded Si3N4 ceramic obtained in bending tests with edge-V-notched specimens were evaluated. A procedure is proposed which allows a straight-forward evaluation of the experimental results in order to obtain the bridging stresses as a function of crack opening displacements. Bridging stresses up to 160 MPa were found acting over a distance of about 0.4 μm. In addition crack profile measurements were performed for Vickers indentation cracks which could approximately be described by use of the bridging relation obtained.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | Fett, Theo ; Munz, D. ; Kounga Njiwa, Alain Brice ; Rödel, Jürgen ; Quinn, G. D. |
| Art des Eintrags: | Bibliographie |
| Titel: | Bridging stresses in sintered reaction-bonded Si3N4 from COD measurements |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2005 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 25 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1016/j.jeurceramsoc.2004.03.005 |
| Kurzbeschreibung (Abstract): | Crack opening displacement measurements on a sintered reaction-bonded Si3N4 ceramic obtained in bending tests with edge-V-notched specimens were evaluated. A procedure is proposed which allows a straight-forward evaluation of the experimental results in order to obtain the bridging stresses as a function of crack opening displacements. Bridging stresses up to 160 MPa were found acting over a distance of about 0.4 μm. In addition crack profile measurements were performed for Vickers indentation cracks which could approximately be described by use of the bridging relation obtained. |
| Freie Schlagworte: | Si3N4; Toughness and toughening; Fracture |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 18 Mai 2011 15:19 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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