ISO INTERNATIONAL STANDARD 14544 First edition 2013-07-01 Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at high temperature - Determination of compression properties Céramiques techniques - Propriétés mécaniques des céramiques compositesa hautetempératureDeétermination des caractéristiques en compression Reference number IS0 14544:2013(E) LSO @ IS0 2013 I without license from IHS Not for Resale IS0 14544:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2013 All rights reserved. Unless otherwise specified, 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 the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 14544:2013(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references ..1 3 Terms and definitions 4 Principle ..3 5 Apparatus ..4 5.1 Test machine. .4 5.2 Load train. ..4 5.3 Gastight test chamber 4 5.4 Set-up for heating. .5 5.5 Extensometer .5 5.6 Temperature measurement. .5 5.7 Data recording system .5 5.8 Micrometers .6 6 Test specimens. .6 6.1 General. .6 6.2 Compression between platens .. 6 6.3 Test specimen used with grips. .7 7 Test specimen preparation .10 7.1 Machining and preparation .10 7.2 Number of test specimens 10 8 Test procedures. .11 8.1 Test set-up: temperature considerations .11 8.2 Test set-up: other considerations .11 8.3 Testing technique.. .12 8.4 Test validity. .13 9 Calculation of results ..13 9.1 Test specimen origin ..13 9.2 Compression strength ..13 9.3 Strain at maximum compression force ..14 9.4 Proportionality ratio or pseudo-elastic modulus, elastic modulus ..14 10 Test report ..16 Annex A (normative) Buckling: How to proceed when buckling is suspected ..17 Bibliography .18 iii ded by IHS under lic ense with ISt ed without license from IHS Not for Resale