TU Darmstadt / ULB / TUbiblio

R-curve behaviour in ceramic composites produced by directed metal oxidation

Rödel, Jürgen and Sindel, M. and Dransmann, M. and Steinbrech, R. W. and Claussen, N. (1994):
R-curve behaviour in ceramic composites produced by directed metal oxidation.
In: Journal of the European Ceramic Society, p. 153, 14, (2), ISSN 09552219, [Online-Edition: http://dx.doi.org/10.1016/0955-2219(94)90103-1],
[Article]

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.

Item Type: Article
Erschienen: 1994
Creators: Rödel, Jürgen and Sindel, M. and Dransmann, M. and Steinbrech, R. W. and Claussen, N.
Title: R-curve behaviour in ceramic composites produced by directed metal oxidation
Language: English
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.

Journal or Publication Title: Journal of the European Ceramic Society
Volume: 14
Number: 2
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 15 Jun 2012 08:41
Official URL: http://dx.doi.org/10.1016/0955-2219(94)90103-1
Identification Number: doi:10.1016/0955-2219(94)90103-1
Export:

Optionen (nur für Redakteure)

View Item View Item