introduction
ISO (International Organization for Standardization) is a global alliance of national standards bodies (ISO member bodies). The development of international standards is usually carried out through ISO technical committees. Each member institution interested in a subject on which a technical committee has been established has the right to be represented on that committee. International governmental and non-governmental organizations liaising with ISO are also involved in this work. ISO works closely with the International Electrotechnical Commission (IEC) on all matters of electrical standardization.

International standards are drafted in accordance with the rules given in Part 2 of the ISO/IEC Directive.

The main task of the technical committee is to develop international standards. The draft international standard adopted by the Technical Committee will be circulated to the member bodies for voting. Publication as an international standard requires approval by at least 75% of member institutions.

Please note that certain elements of this document may be subject to patent rights. ISO is not responsible for identifying any or all such patents.

ISO 26424-2008 “Fine Ceramics (advanced ceramics, advanced technical ceramics) Determination of the wear resistance of coatings by microscopic wear tests”

ISO 26424 was developed by the Technical committee ISO/TC 206 for Fine Ceramics.

1 Range
This standard specifies a method for measuring abrasive wear rates for ceramic coatings through microscopic wear tests based on the well-known shrinkage grinding technique used for coating thickness determination in ISO 26423[11].

The method can provide data on coating and substrate wear rates by performing two separate tests or by carefully analyzing data from a single test series.

The method can be applied to samples with flat or non-flat surfaces, but the analysis of results described in Article 9 applies only to flat samples. For non-planar samples, a more complex analysis is required and may require the use of numerical methods.

2 Normative references
The following reference files are difficult or lacking for the use of this document. For dated references, only the cited version applies. For undated references, a new version of the reference (including any revisions) applies.

ISO 3290-1, Rolling bearings – Balls – Part 1: Steel balls

ISO/IEC 17025, General requirements for testing and calibration laboratory competence

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

3.1 Abrasive wear rate

Abrasive wear coefficient K

The volume of material removed per unit of sliding distance at a normal contact load of 1 N

ISO 26424-2008 “Fine Ceramics (advanced ceramics, advanced technical ceramics) Determination of the wear resistance of coatings by microscopic wear tests”

Only the standard information section is public. To see the full content, you need to purchase the standard through the official channels.