NF EN ISO 17142
NF EN ISO 17142

NF EN ISO 17142

June 2016
Standard Current

Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at high temperature in air at atmospheric pressure - Determination of fatigue properties at constant amplitude

ISO 17142:2014 specifies the conditions for the determination of properties at constant-amplitude of load or strain in uniaxial tension/tension or in uniaxial tension/compression cyclic fatigue of ceramic matrix composite materials (CMCs) with fibre reinforcement for temperature up to 1 700 °C in air at atmospheric pressure.It applies to all ceramic matrix composites with fibre reinforcement, unidirectional (1D), bi-directional (2D), and tri-directional (xD, where 2 < x ≤ 3).Its purpose is to determine the behaviour of CMC when subjected to mechanical fatigue and oxidation simultaneously. Tests for the determination of fatigue properties at high temperature in inert atmospheres differ from those in oxidative atmospheres. Contrary to an inert atmosphere, damage in an oxidative atmosphere accumulates due to the influence of purely mechanical fatigue and to chemical effects of the material's oxidation.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2016

Number of pages

23 p.

Reference

NF EN ISO 17142

ICS Codes

81.060.30   Advanced ceramics

Classification index

B43-356

Print number

1

International kinship

ISO 17142:2014

European kinship

EN ISO 17142:2016
Sumary
Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at high temperature in air at atmospheric pressure - Determination of fatigue properties at constant amplitude

ISO 17142:2014 specifies the conditions for the determination of properties at constant-amplitude of load or strain in uniaxial tension/tension or in uniaxial tension/compression cyclic fatigue of ceramic matrix composite materials (CMCs) with fibre reinforcement for temperature up to 1 700 °C in air at atmospheric pressure.

It applies to all ceramic matrix composites with fibre reinforcement, unidirectional (1D), bi-directional (2D), and tri-directional (xD, where 2 < x ≤ 3).

Its purpose is to determine the behaviour of CMC when subjected to mechanical fatigue and oxidation simultaneously. Tests for the determination of fatigue properties at high temperature in inert atmospheres differ from those in oxidative atmospheres. Contrary to an inert atmosphere, damage in an oxidative atmosphere accumulates due to the influence of purely mechanical fatigue and to chemical effects of the material's oxidation.

Replaced standards (1)
NF EN 15157
NF EN 15157
November 2006
Standard Cancelled
Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature in air at atmospheric pressure - Determination of fatigue properties at constant amplitude

Le présent document spécifie les conditions de détermination des propriétés de fatigue cyclique à amplitude constante de contrainte ou de déformation en traction uniaxiale/traction ou en traction uniaxiale/compression des matériaux composites à matrice céramique (CMC) avec renfort des fibres pour une température jusqu'à 1 700 °C dans l'air à la pression atmosphérique.

Table of contents
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Signification et usage
  • 6 Appareillage
  • 7 Éprouvettes
  • 8 Préparation des éprouvettes
  • 9 Mode opératoire d'essai
  • 10 Calcul des résultats
  • 11 Rapport d'essai
  • Annexe A(informative) Évolution schématique deE
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