Jemná keramika (speciální keramika, speciální technická keramika) - Zkušební metody stanovení lomové houževnatosti monolitické keramiky - Část 5: Metoda zkoušky v ohybu s V-zářezem (SEVNB) (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN ISO 23146
Classification mark: 727514
Catalog number: 500494
Publication date standards: 1.10.2016
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN

Annotation of standard text ČSN EN ISO 23146 (727514):

This 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 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