BS EN ISO 23146:2016
Current
The latest, up-to-date edition.
Fine ceramics (advanced ceramics, advanced technical ceramics). Test methods for fracture toughness of monolithic ceramics. Single-edge V-notch beam (SEVNB) method
Hardcopy , PDF
English
31-05-2016
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test piece preparation
7 Test procedure
8 Precision and bias
9 Test report
Annex A (informative) - Notch honing by machine
Annex B (informative) - Interlaboratory evaluation of
the SEVNB fracture toughness test procedures
Annex C (informative) - Corrections for effective crack
length greater than notch depth
Bibliography
Defines a method for the determination of the fracture toughness of advanced technical ceramics.
| Committee |
RPI/13
|
| DevelopmentNote |
Supersedes DD CEN/TS 14425-5. (05/2016)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes | |
| UnderRevision |
This International Standard specifies a method for the determination of the fracture toughness of advanced technical ceramics. The procedure makes use of single-edge V-notched bars, which are loaded in four-point bending until failure. It is applicable to monolithic ceramics with a grain size or major microstructural feature size larger than about 1 µm.
The use of this International Standard for yttria tetragonal zirconia polycrystal material (Y-TZP) is not recommended. The method might also be unsuitable for some other very tough or soft ceramics in which a sharp crack does not form at the root of the V-notch.
| Standards | Relationship |
| ISO 23146:2012 | Identical |
| EN ISO 23146:2016 | Identical |
| ISO 14704:2016 | Fine ceramics (advanced ceramics, advanced technical ceramics) Test method for flexural strength of monolithic ceramics at room temperature |
| ISO 18756:2003 | 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 |
| EN 623-3:2001 | Advanced technical ceramics - Monolithic ceramics - General and textural properties - Part 3: Determination of grain size and size distribution (characterized by the Linear Intercept Method) |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3611:2010 | Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers for external measurements — Design and metrological characteristics |
| ISO 24370:2005 | Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for fracture toughness of monolithic ceramics at room temperature by chevron-notched beam (CNB) method |
| ISO 7500-1:2015 | Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-measuring system |
| ISO 15732:2003 | Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for fracture toughness of monolithic ceramics at room temperature by single edge precracked beam (SEPB) method |
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