ISO 21113:2018

Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for fracture toughness of monolithic ceramic thin plates at room temperature

This document describes a test method for the determination of the fracture toughness of monolithic ceramic thin plates at room temperature by the single-edge precracked plate method or the single-edge V-notch plate method. This document is intended for use with monolithic ceramics and whisker- or particulate-reinforced ceramics which are regarded as macroscopically homogeneous. It does not include continuous-fibre-reinforced ceramics composites. This document is applicable to ceramic thin plates with a thickness of 0,2 mm to The single-edge V-notch plate method can be applied to monolithic ceramics with a grain size larger than about 1 μm. The use of this method is inappropriate for yttria tetragonal zirconia polycrystal material (Y-TZP), which consists of homogeneous fine submicron grains. 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. This document is for material development, material comparison, quality assurance, characterization, reliability and design data generation.

Céramiques techniques (céramiques avancées, céramiques techniques avancées) — Méthode d’essai pour déterminer la ténacité des plaques minces en céramique monolithique à température ambiante

General Information

• Status: Published
• Publication Date: 16-Jul-2018
• ICS: 81.060.30 - Advanced ceramics
• Technical Committee: ISO/TC 206 - Fine ceramics
• Drafting Committee: ISO/TC 206 - Fine ceramics
• Current Stage: 9060 - Close of review
• Start Date: 04-Mar-2029

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 21113
First edition
2018-07
Fine ceramics (advanced ceramics,
advanced technical ceramics) — Test
method for fracture toughness of
monolithic ceramic thin plates at
room temperature
Céramiques techniques (céramiques avancées, céramiques techniques
avancées) — Méthode d’essai pour déterminer la ténacité des plaques
minces en céramique monolithique à température ambiante
Reference number
ISO 21113:2018(E)
©
ISO 2018

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ISO 21113:2018(E)

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© ISO 2018
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ii © ISO 2018 – All rights reserved

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ISO 21113:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
5.1 Bend testing machine. . 2
5.2 Bend test fixture. . 2
6 Test piece dimension and preparation. 4
6.1 Shape and dimensions of test piece . 4
6.2 Test piece preparation . 5
6.3 Number of test piece . 5
7 Test methods . 5
7.1 Three or four-point bending fracture test . 5
7.2 Measurement of thickness and width of test piece . 5
7.3 Measurement of precrack length . 5
8 Evaluation of validity of measured value . 5
9 Calculation . 6
10 Test report .
...