Abstract

ISO 23146:2012 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 ISO 23146:2012 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.

Begin

2023-11-22

WI

00184289

Planned document number

DIN EN ISO 23146 rev

Project number

06236644

Responsible national committee

NA 062-02-91 AA - Terminology associated with advanced technical ceramics and testing of monolithic ceramics and powders  

Responsible european committee

CEN/TC 184 - Advanced technical ceramics  

Responsible international committee

ISO/TC 206/WG 7 - Monolithic ceramics/ Physical, mechanical and thermal properties