ISO 23114-2020 PDF

Full title and description

Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for determining bonding strength of ceramic coatings. This International Standard defines a laboratory compression test on cross-joined test pieces to determine tensile and shear bonding strength of ceramic coatings bonded to substrates, for use in research, quality control and design-data generation.

Abstract

This document specifies a test method for determining the bonding strength of ceramic coatings at ambient temperature by compression tests on cross-joined test pieces. It covers test-piece preparation, test mode and rate, data collection, calculation of tensile and shear bonding strengths, analysis of uncertainty and reporting requirements. The method applies to thin and thick ceramic coatings on various substrates and is intended for materials research, characterization and quality control.

General information

• Status: Published (International Standard, confirmed).
• Publication date: January 2020 (published 2020-01).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 81.060.30 (Advanced / fine ceramics).
• Edition / version: Edition 1 (2020).
• Number of pages: 13.

Scope

Specifies a standardized laboratory procedure to determine bonding strength of ceramic coatings at ambient temperature using compression of a cross-joined specimen that induces tensile or shear stresses at the coating–substrate interface. The scope covers specimen preparation, test apparatus and fixtures, test procedure and rates, evaluation of failure modes (interface debonding, cohesive failure, adhesive joint failure), calculation methods and reporting. The method is applicable to coatings of varying thickness on a range of substrates for research, QC and design-data purposes.

Key topics and requirements

• Test principle: compression of a cross-joined specimen to produce tensile/shear stresses at the coating–substrate interface and measurement of maximum failure load to calculate bonding strength.
• Specimen preparation: preparation of a coating sample and a perpendicular coupling bar joined with a high-strength adhesive to form the cross-joined test piece; requirements for dimensions and surface preparation.
• Apparatus and metrology: requirements for test machine accuracy, fixtures to avoid asymmetric loading, and dimensional measurement accuracy; data acquisition rate and calibration expectations.
• Test procedure and parameters: defined placement, cross-head rate, number of specimens, measurement of debonded area, and calculation of tensile and shear bonding strengths.
• Analysis and reporting: treatment of fracture modes, uncertainty and precision analysis, and minimum report items (failure loads, joined area, fracture mode, calculated strengths).

Typical use and users

Used by materials scientists, R&D and process engineers, coating and surface-treatment laboratories, QA/QC teams, test laboratories and component designers who need bond-strength data for development, acceptance testing, failure analysis and design input. Laboratories performing interlaboratory comparisons or method validation will also apply this standard.

Related standards

References and cross-references commonly cited with this method include standards on testing-machine calibration and dimensional measurement (for example ISO 7500-1 for calibration/verification of uniaxial testing machines and ISO 3611 for micrometers/dimensional metrology). The standard also includes an informative annex addressing interlaboratory testing guidance.

Keywords

ISO 23114, bonding strength, ceramic coatings, fine ceramics, advanced ceramics, cross-joined test piece, tensile bonding strength, shear bonding strength, test method, quality control, materials characterization.

FAQ

Q: What is this standard?

A: ISO 23114:2020 is an International Standard that specifies a laboratory test method for determining the bonding strength of ceramic coatings using compression tests on cross-joined specimens.

Q: What does it cover?

A: It covers specimen preparation, test apparatus and fixture requirements, test modes and rates, measurement and calculation of tensile and shear bonding strengths, analysis of precision and uncertainty, and reporting of results.

Q: Who typically uses it?

A: Materials researchers, coating process engineers, QC/test laboratories, component designers and reliability engineers who need standardized bond-strength data for coatings applied to various substrates.

Q: Is it current or superseded?

A: ISO 23114:2020 is the first edition (published January 2020) and was confirmed as current in ISO’s systematic review process (confirmed in 2025), so it remains the current version.

Q: Is it part of a series?

A: It is part of the body of ISO/TC 206 (Fine ceramics) work – a set of standards addressing materials, testing and characterization for advanced and technical ceramics; it references and interoperates with related test and metrology standards.

Q: What are the key keywords?

A: Bonding strength, ceramic coating, cross-joined test piece, tensile strength, shear strength, fine ceramics, test method, quality control, materials characterization.