ISO 28703:2011 PDF

Name: ISO 28703:2011 — Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for thermal-shock resistance of porous ceramics
SKU: ISO 28703:2011
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Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for thermal-shock resistance of porous ceramics

Название (английский):

ISO 28703:2011

Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for thermal-shock resistance of porous ceramics

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 5 августа 2011 г.
Издание:: ISO IS 28703 edition 1 version 1
ICS:: 81.060.30

Тип поставки:

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Цена:90 €

Описание (английский):

ISO 28703:2011 specifies a test method for determining the thermal-shock resistance of porous ceramics by water quenching using the bending strength. This test method can be used for selection of materials during design.

Abstract

Overview

Key Topics

Test Methodology The thermal-shock resistance is determined by heating porous ceramic specimens in an electric furnace and rapidly quenching them in controlled-temperature water, followed by measuring residual bending strength through a four-point bending test.
Specimen Preparation Specimens must be prismatic with defined geometric dimensions and surface finishes, ensuring consistent test results. Minimum numbers of specimens per test condition guarantee statistical validity.
Thermal Shock Definition Thermal shock refers to the generation of impulsive thermal stress caused by rapid temperature variation, which can induce cracking or strength degradation in porous ceramics.
Measurement Techniques Includes use of vernier and micrometer calipers for dimension accuracy, thermocouples for precise temperature measurements, and a standardized bending test fixture to measure strength changes after thermal shock.
Evaluation Criteria Identification of the maximum permissible temperature difference-the largest temperature gradient a porous ceramic can endure without significant strength reduction-is key for assessing thermal-shock resistance.
Test Reporting ISO 28703:2011 outlines comprehensive reporting requirements that include test conditions, material details, specimen dimensions, residual strength results, and graphical data illustrating strength degradation relative to temperature differences.

Applications

This ISO standard applies to the evaluation of porous ceramics used in various high-technology fields, including but not limited to:

Filtration Systems - Porous ceramics used as filters require robust thermal-shock resistance to maintain structural integrity during temperature fluctuations.
Catalyst Carriers - Thermal stability is crucial for ceramics serving as catalyst supports in automotive and industrial chemical processes.
Sensors and Molecular Sieves - Devices such as humidity sensors depend on advanced ceramics that resist thermal shock to ensure long-term accuracy and reliability.
Material Selection and Design - Engineers and materials scientists utilize this standardized thermal-shock testing method to select ceramics optimized for thermal cycling performance in demanding operational environments.

Implementing ISO 28703:2011 ensures that thermal-shock performance data are reliable and comparable internationally, aiding in the development of safer, more efficient ceramic-based components.

Related Standards

ISO 28703:2011 aligns and references several key standards pertinent to fine ceramics testing and measurement:

ISO 14704 - Test method for flexural strength of monolithic ceramics at room temperature, providing the bending test procedure foundational to thermal-shock resistance assessment.
ISO 20507 - Vocabulary for fine ceramics, offering standardized terminology to support clear communication in technical documentation.
ISO 1101, ISO 3599, ISO 3611 - Geometrical product specifications and measurement equipment standards ensuring specimen dimensional accuracy.
ISO 4287 - Surface texture parameters defining roughness requirements for test specimens.
IEC 60584-1 - Thermocouple reference tables ensuring precise and accurate temperature measurement during tests.

These associated standards complement ISO 28703:2011 by covering dimensional control, terminology, and instrumentation essential for conducting rigorous thermal-shock tests on porous ceramics.

By adhering to ISO 28703:2011, stakeholders in ceramics manufacturing and research can confidently evaluate materials for thermal-shock durability, aiding in the design of advanced ceramics that meet stringent thermal performance requirements in industrial and technological applications.

Технические детали

Технический комитет: ISO/TC 206 - Fine ceramics
SKU: ISO 28703:2011

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ISO 28703:2011 PDF

Abstract

Overview

Похожие стандарты

Key Topics

Applications

Related Standards

Технические детали

ISO 14704:2008

Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for flexural strength of monolit…

ISO 20507:2003

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

SIST EN ISO 1101:2017

Geometrical product specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, locatio…

ISO 3599:1976

Vernier callipers reading to 0,1 and 0,05 mm

SIST EN ISO 3611:2023

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

ISO 4287:1997/Amd 1:2009

Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface t…

IEC 60584-1:2013

Thermocouples - Part 1: EMF specifications and tolerances