Rödel, Jürgen ; Sindel, M. ; Dransmann, M. ; Steinbrech, R. W. ; Claussen, N. (1994)
R-curve behaviour in ceramic composites produced by directed metal oxidation.
In: Journal of the European Ceramic Society, 14 (2)
doi: 10.1016/0955-2219(94)90103-1
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Crack propagation in three materials (two commercial, one laboratory) produced by directed metal oxidation in a SiC filler was investigated. Crack growth was studied in situ with CT specimen in the scanning electron microscope. Crack tip shielding by the formation of elastic, frictional and ductile crack bridging elements could be observed. R-curve behaviour was found with increases in fracture toughness from about 4 to 7.5 MPa.m1/2 over a crack length of about 1·5 mm. Near crack tip opening displacements provided an estimate of the crack tip toughness value, T0 = 2.0 +/- 0.6 MPa.m1/2. COD measurements at the loadline allowed a distinction between large-scale and small-scale bridging regimes.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 1994 |
| Autor(en): | Rödel, Jürgen ; Sindel, M. ; Dransmann, M. ; Steinbrech, R. W. ; Claussen, N. |
| Art des Eintrags: | Bibliographie |
| Titel: | R-curve behaviour in ceramic composites produced by directed metal oxidation |
| Sprache: | Englisch |
| Publikationsjahr: | 30 April 1994 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 14 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1016/0955-2219(94)90103-1 |
| Kurzbeschreibung (Abstract): | Crack propagation in three materials (two commercial, one laboratory) produced by directed metal oxidation in a SiC filler was investigated. Crack growth was studied in situ with CT specimen in the scanning electron microscope. Crack tip shielding by the formation of elastic, frictional and ductile crack bridging elements could be observed. R-curve behaviour was found with increases in fracture toughness from about 4 to 7.5 MPa.m1/2 over a crack length of about 1·5 mm. Near crack tip opening displacements provided an estimate of the crack tip toughness value, T0 = 2.0 +/- 0.6 MPa.m1/2. COD measurements at the loadline allowed a distinction between large-scale and small-scale bridging regimes. |
| 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: | 15 Jun 2012 08:41 |
| Letzte Änderung: | 05 Mär 2013 10:01 |
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