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Cyclic Fatigue Behaviour of Silicon Nitride Materials by J. Bermudo; M.I. Osendi; M. Li; M.J. Reece is a Materials Science article available to read on EtoBox.

What is Cyclic Fatigue Behaviour of Silicon Nitride Materials about?

The cyclic fatigue behaviour of two silicon nitride materials have been investigated. Both ceramics were prepared under the same processing conditions from two d@erent types of silicon nitride powders. One of the powders was obtained by self-propagation high temperature synthesis (SHS), and the other by a commercial route. Materials have been fully characterized using conventional techniques of XRD and SEh4. Fatigue tests on double cantilever beam-type specimens, at a frequency of 10 Hz and a load rate of R = O-125, have been performed under tension-tension cyclic fatigue, and under tensile static fatigue. Crack growth was measured with a travelling microscope focused on the specimen surface. Crack growth parameters were obtained assuming a Paris power law dependence. The results obtained from these analyses and the study of fracture surfaces on both materials have been correlated to the fatigue mechanism.

Who reads Cyclic Fatigue Behaviour of Silicon Nitride Materials?

Author

J. Bermudo; M.I. Osendi; M. Li; M.J. Reece

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0955-2219)

Published

1997

Language

GL

Field

Materials Science (Physical Sciences)