ISO 26443:2023
Fine ceramics (advanced ceramics, advanced technical ceramics) — Rockwell indentation test for evaluation of adhesion of ceramic coatings
This document specifies a method for the qualitative evaluation of the adhesion of ceramic coatings up to 20 μm thick by indentation with a Rockwell diamond indenter. The formation of cracks after indentation can also reveal cohesive failure. The indentations are made with a Rockwell hardness test instrument.
The method described in this document can also be suitable for evaluating the adhesion of metallic coatings.
The test is not suitable for elastic coatings on hard substrates.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling and preparation of test specimens
7 Procedure
8 Limits
9 Test report
Annex A (informative) Pictorial representations and sample photographs of the classes defined in Table 1
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling and preparation of test specimens
7 Procedure
8 Limits
9 Test report
Annex A (informative) Pictorial representations and sample photographs of the classes defined in Table 1
Bibliography