ISO 14628:2012

INTERNATIONAL ISO
STANDARD 14628
First edition
2012-07-15
Fine ceramics (advanced ceramics,
advanced technical ceramics) — Test
method for rolling contact fatigue
of silicon nitride ceramics at room
temperature by balls-on-flat method
Céramiques techniques — Méthode d’essai de fatigue de contact
de roulement des céramiques au nitrure de silicium à température
ambiante par la méthode des billes sur surface plane
Reference number
ISO 14628:2012(E)
©
ISO 2012

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ISO 14628:2012(E)
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ii © ISO 2012 – All rights reserved

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ISO 14628:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Testing machine . 2
5.1 Structure of testing machine . 2
5.2 Loading precision . 4
6 Test specimens . 4
6.1 Test specimen geometry . 4
6.2 Fixation of test specimen . 5
6.3 Specimen thickness . 5
6.4 Surface finish . 5
6.5 Number of test specimens . 5
7 Test method . 5
7.1 Balls . 5
7.2 Loading method . 5
7.3 Lubrication . 6
7.4 Detection of surface failure . 6
8 Treatment of test result . 7
8.1 Mean effective load . 7
8.2 Mean effective mechanical input .
...