| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10629901 | Journal of the European Ceramic Society | 2005 | 8 Pages |
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.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
T. Fett, D. Munz, A.B. Kounga Njiwa, J. Rödel, G.D. Quinn,