NA 062

DIN Standards Committee Materials Testing

Project

Fine ceramics (advanced ceramics, advanced technical ceramics) - Test methods for fracture toughness of monolithic ceramics - Single-edge V-notch beam (SEVNB) method

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

2023-11-14

WI

00184289

Planned document number

prEN ISO 23146 rev

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  

previous edition(s)

Fine ceramics (advanced ceramics, advanced technical ceramics) - Test methods for fracture toughness of monolithic ceramics - Single-edge V-notch beam (SEVNB) method (ISO 23146:2012)
2016-04

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Steffen Jenkel

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