BS ISO 21713-2020 PDF

Full title and description

STB BS ISO 21713-2020 — Fine ceramics (advanced ceramics, advanced technical ceramics). Determination of elastic modulus of ceramics at high temperature by thin wall C‑ring method. This publication is the British adoption of ISO 21713:2020 and specifies a test method for measuring elastic modulus of ceramic materials at temperatures up to 2 100 °C using a thin‑wall relative C‑ring technique.

Abstract

This standard specifies procedures for preparing test pieces, test modes, heating and loading rates, data collection and reporting for determining the elastic modulus of fine ceramics at high temperature using the thin‑wall C‑ring method. It applies mainly to monolithic fine ceramics, refractory materials and whisker/particulate/fibre‑reinforced ceramic composites. The method is intended for material research, quality control, characterization and generation of design data; it is not suitable for superplastic ceramics or ceramics with very high creep rates.

General information

• Status: Published (ISO international standard; BSI adoption current/confirmed)
• Publication date: ISO published 23 March 2020; BSI adoption published 1 April 2020.
• Publisher: British Standards Institution (BSI) — adoption of ISO 21713:2020; original publisher: International Organization for Standardization (ISO).
• ICS / categories: 81.060.30 (Advanced/fine ceramics).
• Edition / version: Edition 1, 2020 (ISO 21713:2020 / BS ISO 21713:2020).
• Number of pages: ISO edition: 10 pages; BSI published adoption: 18 pages (includes national front matter).

Scope

The standard covers the determination of elastic modulus of ceramic materials at temperatures up to 2 100 °C by the thin‑wall relative C‑ring method. It defines specimen geometry and preparation, test modes (including heating and loading regimes), instrumentation and calibration requirements, data acquisition and calculation/reporting of modulus values. It applies to a wide range of advanced ceramics and ceramic composites but excludes superplastic materials and those exhibiting very high creep rates where the method is not appropriate.

Key topics and requirements

• Specification of thin‑wall C‑ring specimen geometry and preparation requirements.
• Test furnace and thermocouple/location requirements for high‑temperature measurement (up to 2 100 °C).
• Defined heating rates, dwell times and controlled load‑rate procedures to obtain elastic response data.
• Calibration and verification requirements for force and displacement measuring systems.
• Data acquisition, processing and calculation method for determining elastic modulus at elevated temperatures.
• Reporting requirements including test conditions, specimen details, uncertainty considerations and any deviations.
• Applicability notes and limitations (not suitable for superplastic ceramics or very high‑creep materials).

Typical use and users

Used by materials scientists, ceramic engineers, national and industrial testing laboratories, research institutions and quality control teams in industries such as aerospace, power generation, defence and advanced manufacturing. Typical activities include high‑temperature materials characterization, development of design data, qualification testing of advanced ceramic components and comparative research on high‑temperature elastic behaviour.

Related standards

Standards relevant to test equipment, calibration and materials measurement and to the ISO/TC 206 fine ceramics series are commonly referenced alongside this document — for example ISO 3611 (geometrical measuring equipment), ISO 7500‑1 (calibration/verification of static testing machines), IEC/ISO thermocouple and temperature measurement references, and other ISO/TC 206 standards on fine ceramics (neighbouring items in the 217xx and 218xx series). National adoptions (BS ISO versions) are identical in technical content to the ISO edition.

Keywords

fine ceramics; advanced ceramics; elastic modulus; high temperature testing; thin‑wall C‑ring; mechanical properties; ceramic composites; test method; modulus at elevated temperature.

FAQ

Q: What is this standard?

A: It is the British adoption (BS ISO 21713:2020) of ISO 21713:2020, an international standard that specifies a test method to determine elastic modulus of fine/advanced ceramics at high temperatures using a thin‑wall C‑ring technique.

Q: What does it cover?

A: The standard covers specimen preparation, test modes, heating and loading rates, instrumentation calibration, data collection, calculation of elastic modulus and reporting for tests up to about 2 100 °C. It also states applicability limits and materials for which the method is not suitable.

Q: Who typically uses it?

A: Materials researchers, ceramic and mechanical test laboratories, component designers and quality control engineers in sectors that use high‑temperature ceramics (aerospace, defence, energy, advanced manufacturing).

Q: Is it current or superseded?

A: The 2020 edition is the first edition (ISO 21713:2020) and is published and in current use; the national BS adoption was published in 2020 as BS ISO 21713:2020. Users should check national catalogues for any later confirmations or revisions, but as published it is the current (confirmed) edition from 2020.

Q: Is it part of a series?

A: Yes — it is part of ISO/TC 206 work on fine/advanced ceramics and sits alongside related ISO standards addressing test methods and characterization for ceramic materials (other ISO 217xx / ISO 218xx items and related test‑method standards).

Q: What are the key keywords?

A: Fine ceramics, advanced ceramics, elastic modulus, high temperature, thin‑wall C‑ring, mechanical testing, ceramic composites, modulus measurement.