ISO INTERNATIONAL STANDARD 18555 First edition 2016-02-01 Metallic and other inorganic coatings Determination of thermal conductivity of thermal barrier coatings Revetements métalliques et autres revetements inorganiques - Détermination de la conductivité thermique des revetements barrieres thermiques Reference number ISO 18555:2016(E) ISO International Organization for Standardization =ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02016 IS0 18555:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 0d6 - All rights reserved Not for Resale, 2016/4/22 08:04:4 networking permited without license from IHS IS0 18555:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references .1 3 Terms and definitions 1 4 Principle .4 5 Apparatus for measuring thermal diffusivity 4 6 Specimen. .5 6.1 Shape and dimensions ..5 6.2 Surface treatment. .7 7 Measuring procedure .7 7.1 Specimen thickness. .7 7.2 Thermal diffusivity. .7 7.2.1 Measurement of temperature-rise curve. .7 7.2.2 Calculation of thermal diffusivity of substrate ..7 7.2.3 Calculation of thermal diffusivities of BC and TC .7 7.3 Specific heat capacity 10 7.4 Bulkdensity .10 8 Thermal conductivities of BC and TC ..11 9 Report. ..11 9.1 Items to be reported. ..11 9.2 Additional items to be selected for the report 12 Annex A (informative) Areal heat diffusion time method ..13 Annex B (informative) Examples of theoretical temperature-rise curves ..16 Bibliography .18 ii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ithout license from IHS