ISO 20267:2017 PDF

Scope: 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.

ISO 20267:2017 Referenced Document

ISO 14577-4:2016 Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 4: Test method for metallic and non-metallic coatings
ISO 14916:2017 Thermal spraying - Determination of tensile adhesive strength
ISO 17561:2016 Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for elastic moduli of monolithic ceramics at room temperature by sonic resonance
ISO 19477:2016 Metallic and other inorganic coatings - Measurement of Young's modulus of thermal barrier coatings by beam bending
ISO 6507-1:2005 Metallic materials - Vickers hardness test - Part 1: Test method
ISO 6507-2:2005 Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines

2017 ISO 20267:2017 Thermal spraying - Determination of interfacial toughness of ceramic coatings by indentation