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DD ENV 12789:1998

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Advanced technical ceramics. Mechanical properties of ceramic composites at high temperature under air at atmospheric pressure. Determination of flexural strength
Available format(s)

Hardcopy , PDF

Superseded date

04-17-2003

Language(s)

English

Published date

07-15-1998

Contents
National foreword
Foreword
1. Scope
2. Normative references
3. Principle
4. Definitions and symbols
    4.1 Test temperature, T
    4.2 Maximum flexural force, FM
    4.3 Flexural stress, O
    4.4 Flexural strength, OF,M
5. Apparatus
    5.1 Test machine
    5.2 Test Jig
    5.3 Set-up for heating
    5.4 Temperature measurement
    5.5 Data recording system
    5.6 Micrometers
6. Test specimens
7. Test specimen preparation
    7.1 Machining and preparation
    7.2 Number of test specimens
8. Test procedures
    8.1 Test set-up: Temperature considerations
    8.2 Test set-up: Other considerations
    8.3 Testing technique
    8.4 Test validity
9. Calculation of results
    9.1 Test specimen origin
    9.2 Flexural strength
10. Test report

Gives the conditions to determine the flexural strength of ceramic matrix composite materials with continuous fibre reinforcement under three-point or four-point bending for temperatures up to 1 700 Deg C in air at atmospheric pressure. Applicable to all ceramic matrix composites with a continuous fibre reinforcement, unidirectional (1D), bidirectional (2D), and tridirectional (xD, with 2 less than x less than or equal to 3), loaded along one principal axis of reinforcement.

Committee
RPI/13
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
ENV 12789 : 1998 Identical

EN 10002-2 : 1991 METALLIC MATERIALS - TENSILE TESTING - PART 2: VERIFICATION OF THE FORCE MEASURING SYSTEM OF THE TENSILE TESTING MACHINE
EN 60584-2:1993 Thermocouples - Part 2: Tolerances
ENV 843-5 : 1996 ADVANCED TECHNICAL CERAMICS - MONOLITHIC CERAMICS - MECHANICAL TESTS AT ROOM TEMPERATURE - STATISTICAL ANALYSIS
EN 60584-1:2013 Thermocouples - Part 1: EMF specifications and tolerances
ISO 3611:2010 Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers for external measurements — Design and metrological characteristics

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