MAZERAT, Stephane; PAILLER, Rene

doi:10.1016/j.dib.2020.106676

MAZERAT, Stephane
Laboratoire des Composites Thermostructuraux [LCTS]

PAILLER, Rene
Laboratoire des Composites Thermostructuraux [LCTS]

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Article de revue

Ce document a été publié dans

Data in Brief. 2021, vol. 34, p. 106676

Résumé en anglais

This data article reports a systematic fractographic analysis of SiC-based filaments aiming at stress intensity factors assessment. A total of 11 fiber types (as-received or chlorinated Nicalon® and Tyranno® of all three generations) where therefore repeatedly tensile tested to generate the fracture surfaces. The tensile strengths were found to be independent to defect location (surface or internal). The well-known linear square root dependence of strength on mirror, mist or hackle outer radius was reaffirmed. These measurements reveal some residual tensile stresses on Nicalon® fibers, statement however questioned by the broad data scattering. Moreover, it is shown the surface etching treatment didn't affected (generating or releasing) such residual stress. A null y-intercept was consequently adopted to assess the characteristic stress intensity factors (KIC, mirror, mist or hackle constants). The toughness (KIC) estimated this way ranges from 1.0 to 1.9 MPa m1/2 and shows a clear dependency to substrate composition: higher values were extracted on oxygen-free fibers. The Am/KIC ratio, estimated to equal 1.8 and independent to substrate type, is a key parameter that would assist further fractographic investigations.< Réduire

Mots clés en anglais

SiC fiber

Fractographic analysis

Toughness

Mirror

URI

https://oskar-bordeaux.fr/handle/20.500.12278/124053

DOI

http://dx.doi.org/10.1016/j.dib.2020.106676

Lien vers les données de la recherche

https://doi.org/10.1016/j.dib.2020.106676

Unités de recherche

Laboratoire des Composites Thermo Structuraux (LCTS) - UMR 5801

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Dataset on fractographic analysis of various SiC-based fibers