EN 12788:2005

Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature under inert atmosphere - Determination of flexural strength

TThis document specifies the conditions for determination of the flexural strength of ceramic matrix composite materials with continuous fibre reinforcement under three-point or four-point bending for temperatures up to 2 000 °C under vacuum or a gas atmosphere which is inert to the material under test.
NOTE 1   The use of these environments is aimed at avoiding changes of the material affecting its flexural strength caused by chemical reaction with its environment during the test.
This European document applies to all ceramic matrix composites with a continuous fibre reinforcement, unidirectional (1D), bidirectional (2D), and tridirectional (xD, with 2 < x £ 3), loaded along one principal axis of reinforcement.
NOTE 2   The method outlined in this document should not be used to obtain values of flexural strength for design purposes.

Hochleistungskeramik - Mechanische Eigenschaften von keramischen Verbundwerkstoffen bei hoher Temperatur an inerter Atmosphäre - Bestimmung der Biegefestigkeit

Céramiques techniques avancées - Propriétés mécaniques des céramiques composites à haute température sous atmosphère inerte - Détermination de la résistance en flexion

La présente Norme européenne a pour objet de fixer les conditions de détermination de la résistance en flexion des matériaux composites à matrice céramique et à renforts continus par un essai de flexion en trois points ou en quatre points à des températures allant jusqu'à 2 000 °C sous vide ou sous une atmosphère gazeuse inerte par rapport au matériau essayé.
NOTE 1   L'utilisation de ces environnements a pour objectif d'éviter tout changement qui pourrait affecter la résistance en flexion et qui pourrait être dû à des réactions chimiques entre le matériau et son environnement pendant l'essai.
Le présent document s'applique à tous les matériaux composites à matrice céramique à renforts continus, unidirectionnels (1D), bidirectionnels (2D) et tridirectionels (xD avec 2 <  x £  3) sollicités suivant une direction principale de renfort.
NOTE 2   Cette méthode ne doit pas être utilisée pour obtenir des valeurs de résistance en flexion destinées au calcul des pièces.

Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature under inert atmosphere - Determination of flexural strength

General Information

• Status: Withdrawn
• Publication Date: 30-Aug-2005
• Withdrawal Date: 05-Jul-2023
• ICS: 81.060.99 - Other standards related to ceramics
• Technical Committee: CEN/TC 184 - Advanced technical ceramics
• Drafting Committee: CEN/TC 184/SC 1 - Ceramic composites
• Mandate: M/076 - Mandate to CEN/CENELEC for standardization in the field of advanced ceramics
• Ref Project: SIST EN 12788:2005 - Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature under inert atmosphere - Determination of flexural strength

Relations

• Replaces: ENV 12788:1998 - Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature under inert atmosphere - Determination of flexural strength
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 12788:2005
01-december-2005
Advanced technical ceramics - Mechanical properties of ceramic composites at
high temperature under inert atmosphere - Determination of flexural strength
Advanced technical ceramics - Mechanical properties of ceramic composites at high
temperature under inert atmosphere - Determination of flexural strength
Hochleistungskeramik - Mechanische Eigenschaften von keramischen
Verbundwerkstoffen bei hoher Temperatur an inerter Atmosphäre - Bestimmung der
Biegefestigkeit
Céramiques techniques avancées - Propriétés mécaniques des céramiques composites
a haute température sous atmosphere inerte - Détermination de la résistance en flexion
Ta slovenski standard je istoveten z: EN 12788:2005
ICS:
81.060.30 Sodobna keramika Advanced ceramics
SIST EN 12788:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12788:2005

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SIST EN 12788:2005
EUROPEAN STANDARD
EN 12788
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 81.060.99 Supersedes ENV 12788:1998
English Version
Advanced technical ceramics - Mechanical properties of ceramic
composites at high temperature under inert atmosphere -
Determination of flexural strength
Céramiques techniques avancées - Propriétés mécaniques Hochleistungskeramik - Mechanische Eigenschaften von
des céramiques composites à haute température sous keramischen Verbundwerkstoffen bei hoher Temperatur an
atmosphère inerte - Détermination de la résistance en inerter Atmosphäre - Bestimmung der Biegefestigkeit
flexion
This European Standard was approved by CEN on 18 July 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12788:2005: E
worldwide for CEN national Members.

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SIST EN 12788:2005
EN 12788:2005 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms, definitions and symbols .4
4 Principle.5
5 Apparatus .5
5.1 Test machine .5
5.2 Test jig .5
5.3 Gastight test chamber .7
5.4 Set-up for heating .7
5.5 Temperature measurement devices .7
5.6 Data recording system .7
5.7 Micrometers.
...