EN 12290:2005

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle
5 Apparatus
   5.1 Test machine
   5.2 Load train
   5.3 Gastight test chamber
   5.4 Set-up for heating
   5.5 Extensometer
   5.6 Temperature measurement devices
   5.7 Data recording system
   5.8 Micrometers
6 Test specimens
   6.1 General
   6.2 Compression between platens
   6.3 Test specimen used with grips
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 Compression strength
   9.3 Strain at maximum compression force
   9.4 Proportionality ratio or pseudo-elastic
       modulus, elastic modulus
10 Test report
Annex A (normative) Buckling: How to proceed when
                    buckling is suspected
   A.1 Preliminary room temperature test
   A.2 Test with two different specimens
Bibliography

This European Standard specifies the conditions for determination of compression properties of ceramic matrix composite materials with continuous fibre reinforcement for temperatures up to 2 000 °C under vacuum or a gas atmosphere which is inert to the material under test.

NOTEThe use of these environments is aimed at avoiding changes of the material to be tested due to chemical reaction with its environment during the test.

This European Standard 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.

Two types of compression are distinguished:

a)compression between platens;

b)compression using grips.