ISO 14574:2025 PDF

Fine ceramics (advanced ceramics, advanced technical ceramics) — Mechanical properties of ceramic composites at high temperature — Determination of tensile properties

Open preview (PDF)

Title (English):

ISO 14574:2025

Fine ceramics (advanced ceramics, advanced technical ceramics) — Mechanical properties of ceramic composites at high temperature — Determination of tensile properties

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 26
Publication date:: January 14, 2025
Edition:: ISO IS 14574 edition 2 version 1
ICS:: 81.060.30

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

This document specifies procedures for determination of the tensile behaviour of ceramic matrix composite materials with continuous fibre reinforcement at elevated temperature in air, vacuum and inert gas atmospheres. This method applies to all ceramic matrix composites with a continuous fibre reinforcement, uni-directional (1D), bidirectional (2D) and multi-directional (xD, with x> 2), tested along one principal axis of reinforcement or off axis conditions for 2D and xD materials. This method also applies to carbon-fibre-reinforced carbon matrix composites (also known as carbon/carbon or C/C). NOTE In most cases, ceramic matrix composites to be used at high temperature in air are coated with an anti-oxidation coating.

Technical details

Technical committee: ISO/TC 206 - Fine ceramics
SKU: ISO 14574:2025

Abstract

Overview

ISO 14574:2025 - Fine ceramics (advanced/technical ceramics) - Mechanical properties of ceramic composites at high temperature - Determination of tensile properties - specifies standardized procedures for measuring the tensile behaviour of ceramic matrix composites (CMCs) with continuous fibre reinforcement at elevated temperatures. The standard applies to testing in air, vacuum, and inert gas atmospheres, and covers uni‑directional (1D), bi‑directional (2D) and multi‑directional (xD) constructions, including carbon‑fibre‑reinforced carbon (C/C) materials. It defines terminology (gauge length, calibrated length, controlled‑temperature zone, tensile stress/strength, etc.) and notes practical considerations such as anti‑oxidation coatings for high‑temperature exposure in air.

Key topics and technical requirements

Scope and definitions: precise terms for test temperature, gauge length (L0), calibrated length and cross‑section areas (apparent vs effective).
Apparatus and setup: requirements for the test machine, load train, test chamber, heating arrangements, strain gauges/extensometers, temperature sensors and data acquisition.
Controlled‑temperature zone: the standard defines the zone around the gauge length where temperature must be within ±50 °C of the test temperature.
Specimen design and preparation: recommended specimen types for 1D/2D/xD composites, machining, and the number of specimens.
Test procedures: temperature calibration, setting extensometers, atmosphere control, displacement rates and measurement of dimensions.
Calculations and outputs: methods to compute tensile strength, strain at maximum force, and tensile modulus (including handling linear and non‑linear behaviour).
Validity, uncertainties and reporting: criteria for test validity, guidance on uncertainty estimates, and required test report contents.
Informative annexes: Annex A illustrates tensile modulus; Annex B provides a temperature calibration method using a cartographic specimen with thermocouples.

Applications and who uses ISO 14574:2025

Materials and mechanical testing laboratories performing high‑temperature tensile characterization of CMCs.
R&D and design engineers in aerospace, power generation (gas turbines), automotive (exhaust/thermal components), defense and advanced manufacturing who need reliable mechanical property data.
Manufacturers of advanced ceramics and CMC components seeking standardized qualification and quality control methods.
Academic and industrial researchers validating models of high‑temperature behaviour, and certification bodies requiring reproducible test methods.

Practical benefits

Provides repeatable, comparable tensile data for CMC selection and design.
Ensures consistent handling of coatings, atmospheres and temperature control crucial to high‑temperature testing.
Supports product qualification, material development and regulatory compliance.

Related standards

ISO 20507 (vocabulary), ISO 19634 (composite symbols/notations), ISO 3611, ISO 7500‑1, ISO 9513 and IEC 60584‑1 (thermocouples) - referenced for measurement, calibration and instrumentation.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Scope and definitions: precise terms for test temperature, gauge length (L0), calibrated length and cross‑section areas (apparent vs effective).
Apparatus and setup: requirements for the test machine, load train, test chamber, heating arrangements, strain gauges/extensometers, temperature sensors and data acquisition.
Controlled‑temperature zone: the standard defines the zone around the gauge length where temperature must be within ±50 °C of the test temperature.
Specimen design and preparation: recommended specimen types for 1D/2D/xD composites, machining, and the number of specimens.
Test procedures: temperature calibration, setting extensometers, atmosphere control, displacement rates and measurement of dimensions.
Calculations and outputs: methods to compute tensile strength, strain at maximum force, and tensile modulus (including handling linear and non‑linear behaviour).
Validity, uncertainties and reporting: criteria for test validity, guidance on uncertainty estimates, and required test report contents.
Informative annexes: Annex A illustrates tensile modulus; Annex B provides a temperature calibration method using a cartographic specimen with thermocouples.

Applications and who uses ISO 14574:2025

Materials and mechanical testing laboratories performing high‑temperature tensile characterization of CMCs.
R&D and design engineers in aerospace, power generation (gas turbines), automotive (exhaust/thermal components), defense and advanced manufacturing who need reliable mechanical property data.
Manufacturers of advanced ceramics and CMC components seeking standardized qualification and quality control methods.
Academic and industrial researchers validating models of high‑temperature behaviour, and certification bodies requiring reproducible test methods.

Practical benefits

Provides repeatable, comparable tensile data for CMC selection and design.
Ensures consistent handling of coatings, atmospheres and temperature control crucial to high‑temperature testing.
Supports product qualification, material development and regulatory compliance.

Related standards

ISO 20507 (vocabulary), ISO 19634 (composite symbols/notations), ISO 3611, ISO 7500‑1, ISO 9513 and IEC 60584‑1 (thermocouples) - referenced for measurement, calibration and instrumentation.

ISO 14574:2025 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications and who uses ISO 14574:2025

Practical benefits

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications and who uses ISO 14574:2025

Practical benefits

Related standards

Related standards

Fine ceramics (advanced ceramics, advanced technical ceramics) — Vocabulary

Fine ceramics (advanced ceramics, advanced technical ceramics) - Ceramic composites - Notations and symbols (…

Geometrical product specifications (GPS) - Dimensional measuring equipment - Design and metrological characte…

Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression testing m…

Metallic materials - Calibration of extensometer systems used in uniaxial testing - Technical Corrigendum 1 (…

Thermocouples - Part 1: EMF specifications and tolerances