BS EN 13235:2006

Foreword
1 Scope
2 Normative references
3 Principle
4 Terms, definitions and symbols
5 Significance and use
6 Apparatus
   6.1 Test installations
   6.2 Load train
   6.3 Test chamber
   6.4 Set-up for heating
   6.5 Extensometer
   6.6 Temperature measurement
   6.7 Data recording system
   6.8 Micrometers
7 Test specimens
8 Test specimen preparation
   8.1 Machining and preparation
   8.2 Number of test specimens
9 Test procedures
   9.1 Test set-up: temperature considerations
   9.2 Test set-up: loading considerations
   9.3 Test set-up: measurement of test specimen dimensions
   9.4 Test technique
   9.5 Test validity
10 Calculation of results
   10.1 Test specimen origin
   10.2 Results
   10.3 Creep strain rate curve
11 Test report

Describes the conditions for the determination of the tensile creep deformation and failure behaviour of ceramic matrix composite materials with continuous fibre reinforcement for temperatures up to 2000 degree C under vacuum or in a gas atmosphere which is inert to the material under test. The purpose of these test conditions is to prevent changes to the material as a result of chemical reaction with the test environment.

This European Standard specifies the conditions for the determination of the tensile creep deformation and failure behaviour of ceramic matrix composite materials with continuous fibre reinforcement for temperatures up to 2 000 °C under vacuum or in a gas atmosphere which is inert to the material under test. The purpose of these test conditions is to prevent changes to the material as a result of chemical reaction with the test environment. This European Standard applies to all ceramic matrix composites with a continuous fibre reinforcement, unidirectional (1 D), bidirectional (2 D), and tridirectional (x D, where 2 ? x ? 3), loaded along one principal axis of reinforcement.