SIST EN ISO 18755:2023
(Main)Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of thermal diffusivity of monolithic ceramics by flash method (ISO 18755:2022)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of thermal diffusivity of monolithic ceramics by flash method (ISO 18755:2022)
This document specifies the test method for the determination of thermal diffusivity from room temperature to at least 1 700 K by the flash method for homogeneous monolithic ceramics with porosity less than 10 %.
Flash methods, like laser flash, are applicable to homogeneous isotropic materials with thermal diffusivity values ranging from 0,1 to 1 000 mm2 s1 within the temperature range from approximately 100 K to 2 300 K.
The method described in Annex G describes how to estimate, on the basis of the thermal diffusivity test, the specific heat capacity and the thermal conductivity of homogeneous monolithic ceramics with porosity less than 10 %.
Hochleistungskeramik - Bestimmung der Temperaturleitfähigkeit monolithischer Keramik mit dem Laserflash-Verfahren (ISO 18755:2022)
Dieses Dokument legt das Prüfverfahren für die Bestimmung der Temperaturleitfähigkeit von Raumtemperatur bis mindestens 1 700 K mittels des Flashverfahrens für homogene monolithische Keramik mit einer Porosität von weniger als 10 % fest.
Flashverfahren wie das Laserflash-Verfahren sind für homogene isotrope Werkstoffe mit Temperaturleitfähigkeitswerten im Bereich von 0,1 mm2 s−1 bis 1 000 mm2 s−1 innerhalb des Temperaturbereiches von etwa 100 K bis 2 300 K anwendbar.
Das Verfahren in Anhang G beschreibt, wie die spezifische Wärmekapazität und die Wärmeleitfähigkeit von homogener monolithischer Keramik mit einer Porosität von weniger als 10 % auf der Grundlage der Temperaturleitfähigkeitsprüfung abzuschätzen sind.
Céramiques techniques - Détermination de la diffusivité thermique des céramiques monolithiques par la méthode flash (ISO 18755:2022)
Le présent document spécifie la méthode d’essai pour la détermination de la diffusivité thermique de la température ambiante à au moins 1 700 K par la méthode flash pour les céramiques monolithiques homogènes dont la porosité est inférieure à 10 %.
Les méthodes flash, telles que flash laser, sont applicables aux matériaux isotropes homogènes dont les valeurs de diffusivité thermique sont comprises entre 0,1 mm2 s–1 et 1 000 mm2 s–1 dans une plage de températures allant d’environ 100 K à 2 300 K.
La méthode décrite à l’Annexe G décrit comment estimer, à partir de l’essai de diffusivité thermique, la capacité thermique massique et la conductivité thermique des céramiques monolithiques homogènes dont la porosité est inférieure à 10 %.
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Ugotavljanje toplotne difuzivnosti monolitske keramike z bliskovno metodo (ISO 18755:2022)
Ta dokument določa preskusno metodo za ugotavljanje toplotne difuzivnosti iz sobne temperature vsaj v vrednosti 1700 K z bliskovno metodo za homogeno monolitsko keramiko s stopnjo poroznosti manj kot 10 %.
Bliskovne metode, kot je laserski blisk, se uporabljajo za homogene izotropne materiale z vrednostjo toplotne difuzivnosti med 0,1 in 1000 m2 s-1 znotraj temperaturnega območja med približno 100 K in 2300 K.
Metoda, opisana v prilogi G, opisuje, kako na podlagi preskusa toplotne difuzivnosti oceniti specifično toplotno kapaciteto in toplotno prevodnost homogene monolitske keramike s stopnjo poroznosti manj kot 10 %.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 18755:2023
01-december-2023
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Ugotavljanje
toplotne difuzivnosti monolitske keramike z bliskovno metodo (ISO 18755:2022)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of
thermal diffusivity of monolithic ceramics by flash method (ISO 18755:2022)
Hochleistungskeramik - Bestimmung der Temperaturleitfähigkeit monolithischer Keramik
mit dem Laserflash-Verfahren (ISO 18755:2022)
Céramiques techniques - Détermination de la diffusivité thermique des céramiques
monolithiques par la méthode flash (ISO 18755:2022)
Ta slovenski standard je istoveten z: EN ISO 18755:2023
ICS:
81.060.30 Sodobna keramika Advanced ceramics
SIST EN ISO 18755:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 18755:2023
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SIST EN ISO 18755:2023
EN ISO 18755
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2023
EUROPÄISCHE NORM
ICS 81.060.30 Supersedes EN 821-2:1997
English Version
Fine ceramics (advanced ceramics, advanced technical
ceramics) - Determination of thermal diffusivity of
monolithic ceramics by flash method (ISO 18755:2022)
Céramiques techniques - Détermination de la Hochleistungskeramik - Bestimmung der
diffusivité thermique des céramiques monolithiques Temperaturleitfähigkeit monolithischer Keramik mit
par la méthode flash (ISO 18755:2022) dem Laserflash-Verfahren (ISO 18755:2022)
This European Standard was approved by CEN on 22 October 2023.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18755:2023 E
worldwide for CEN national Members.
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SIST EN ISO 18755:2023
EN ISO 18755:2023 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 18755:2023
EN ISO 18755:2023 (E)
European foreword
The text of ISO 18755:2022 has been prepared by Technical Committee ISO/TC 206 "Fine ceramics” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 18755:2023
by Technical Committee CEN/TC 184 “Advanced technical ceramics” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2024, and conflicting national standards shall be
withdrawn at the latest by April 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 821-2:1997.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
...
SLOVENSKI STANDARD
oSIST prEN ISO 18755:2023
01-september-2023
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Ugotavljanje
toplotne difuzivnosti monolitske keramike z bliskovno metodo (ISO 18755:2022)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of
thermal diffusivity of monolithic ceramics by flash method (ISO 18755:2022)
Hochleistungskeramik - Bestimmung der Temperaturleitfähigkeit monolithischer Keramik
mit dem Laserflash-Verfahren (ISO 18755:2022)
Céramiques techniques - Détermination de la diffusivité thermique des céramiques
monolithiques par la méthode flash (ISO 18755:2022)
Ta slovenski standard je istoveten z: prEN ISO 18755
ICS:
81.060.30 Sodobna keramika Advanced ceramics
oSIST prEN ISO 18755:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 18755:2023
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oSIST prEN ISO 18755:2023
INTERNATIONAL ISO
STANDARD 18755
Second edition
2022-12
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Determination of thermal diffusivity
of monolithic ceramics by flash
method
Céramiques techniques — Détermination de la diffusivité thermique
des céramiques monolithiques par la méthode flash
Reference number
ISO 18755:2022(E)
© ISO 2022
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oSIST prEN ISO 18755:2023
ISO 18755:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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Published in Switzerland
ii
© ISO 2022 – All rights reserved
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oSIST prEN ISO 18755:2023
ISO 18755:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 3
4.1 General . 3
4.2 Specimen holder . 4
4.3 Flash source . 4
4.4 Thermometer for measuring steady-state temperature of the specimen . 5
4.5 Detector for measuring transient temperature rise of rear face of the specimen . 5
4.6 Environment for measurements . . 5
4.7 Temperature control unit . 5
4.8 Data acquisition unit . 5
5 Specimen .
...
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