NEN EN ISO 18756 : 2005
Current
The latest, up-to-date edition.
FINE CERAMICS (ADVANCED CERAMICS, ADVANCED TECHNICAL CERAMICS) - DETERMINATION OF FRACTURE TOUGHNESS OF MONOLITHIC CERAMICS AT ROOM TEMPERATURE BY THE SURFACE CRACK IN FLEXURE (SCF) METHOD
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 Apparatus
7 Test specimens
7.1 Specimen size, preparation and edge chamfering
7.2 Number of specimens
8 Procedure
8.1 Introduction of the precrack by Knoop indentation
8.2 Specimen fracture
8.3 Crack size measurement
8.4 Environmental effects
8.5 Optional: Estimate of R-curve behaviour
8.6 Optional: Reference materials
9 Calculation
10 Test report
Annex A (informative) Environmental effects
Annex B (normative) Precrack characterization
Annex C (informative) R-curve estimation by the SCF method
Annex D (normative) Chamfer correction factors
Bibliography
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