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BS ISO 20267:2017

BS ISO 20267:2017

$102.76

Thermal spraying. Determination of interfacial toughness of ceramic coatings by indentation

Published By Publication Date Number of Pages
BSI 2017 22
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This document specifies a method for measuring the interfacial toughness of thermal spray ceramic coatings at room temperature based on an indentation method. The interfacial toughness is calculated from the mean length of cracks emanating from the corners of the impression induced by a Vickers hardness tester, and it is intended for use with ceramic coatings with a single layer or multilayers. The test procedures proposed in this document are intended for use in an ambient environment.

This document is recommended for thermal spray ceramic coatings such as thermal barrier coatings, wear resistant coatings and electrical insulating coatings.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
11 5 Principle
6 Test pieces and sample preparation
12 6.1 Thicknesses of coating and substrate
6.2 Sample size
6.3 Sample cutting
6.4 Mounting
6.5 Surface polishing
13 7 Apparatus
8 Procedure and conditions of testing
8.1 Indentation
8.2 Indentation and crack length measurement
15 9 Evaluation of indentation interfacial toughness
9.1 Analysis
9.2 Test validity
16 10 Test report
10.1 Items to be reported
17 10.2 Other items to be reported
18 Bibliography

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BS ISO 20267:2017
$102.76