prEN ISO 23146

Name: prEN ISO 23146
Brand: CEN
SKU: prEN ISO 23146
Price: 41.76 EUR
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Fine ceramics (advanced ceramics, advanced technical ceramics) — Test methods for fracture toughness of monolithic ceramics — Single-edge V-notch beam (SEVNB) method

Publication date: Dec 18, 2025

General information

Current stage: 45.99 Dispatch of FV draft to CCMC Aug 31, 2026

Originator: CEN

Owner: CEN/TC 184 Advanced technical ceramics

Type: European Norm

ICS: 81.060.30 Advanced ceramics

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Status: Draft

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Languages: English

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Scope

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.

Life cycle

PREVIOUSLY

PUBLISHED
EN ISO 23146:2016

NOW

IN_DEVELOPMENT
prEN ISO 23146
45.99 Dispatch of FV draft to CCMC
Aug 31, 2026