ISO 19674 2025.docx

ISOInternationalStandardISO19674Secondedition2025-06Fineceramics(advancedceramics,advancedtechnicalceramics)一MethodsoftestforceramiccoatingsDeterminationofinternalstressinceramiccoatingsbyapplicationoftheStoneyformulaCeramiquesfines(ceramiquesavancees,Ceramiquestechniquesavancees)Methodesd'essaidesrevelementsceramiquesDeterminationdelaContrainteinternedesrevetementsceramiquesparapplicationdelaformuledeStoneyReferencenumberISO19674:2025(en)COPYRIGHTPROTECTEDDOCUMENT©ISO2025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandPageContentsForewordivIntroductionv1 Scope12 Normativereferences13 Termsanddefinitions14 Principle15 Apparatus26 Preparationoftestspecimens36.1 Material36.2 Samplegeometry36.3 Samplesurfacefinish36.4 Sampledimensions31234567ZZ7.ZZZZMeasuringrangeandinitialprofile4Depositionofthecoating4Coatingthickness5Adjustingthesamplegeometryafterdepositionofthecoating5Measuringthefinalprofile5Calculationofstress67.6.1 fhs<0,0267.6.2 0f02hfh<0,17Numberofrepeatmeasurements78 Limitstomethod79 Testreport7Annex A (informative)Determinationofsuitabledimensionsforthetestsample9Annex B (informative)Internalstresscalculationinceramiccoatingofrealcomponents11Bibliography13ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentsshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asofthedateofpublicationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimplementthisdocument.However,Implementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtainedfromthepatentdatabaseavailableatWWW.iso.org/patents.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexplanationofthevoluntarynatureofstandards,themeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISO'sadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT),seeWWW.iso.org/iso/foreword.htmLThisdocumentwaspreparedbyTechnicalCommitteeISO/TC206,Fineceramics.Thissecondeditioncancelsandreplacesthefirstedition(ISO19674:2017),whichhasbeentechnicallyrevised.Themainchangesareasfollows: intheScope,thesubstrateislimitedtoisotropicones; inClause5,thecontentsofEXAMPLEarealldeletedduetoanincorrectFOlmUlaanditsweakcorrelation;一in7.5,thecalculationforRaYnhasbeenrevised; attheendofZ15aschematicdiagram(Figure1)andanapproximatecalculationofReXPfromdeflectionhasbeenaddedandtheformularenumberedtoFormula(3); AnneXBhasbeenadded.Anyfeedbackorquestionsonthisdocumentshouldbedirectedtotheuser'snationalstandardsbody.AcompletelistingofthesebodiescanbefoundatWWW.iso.org/members.htmLIntroductionThereisanincreasinguseofcoatingstoimprovethefunctionalperformanceofmaterialsandcomponents.Thiscanbetoprotectagainstdamageduetoexposuretodemandingenvironmentsincludinghighstressesandaggressivechemicalenvironments,butcanalsobetomodifymanyotherproperties,e.g.thermalconductivitythroughthermalbarriercoatings,frictionthroughlowfrictioncoatings,suchasdiamondlikecarbon(DLC工andopticalreflectivitythroughcoatingswithcontrolledopticalproperties.Appropriatechoiceofcoatingsforparticularapplicationsdependsonthemechanicalandotherfunctionalrequirementsthatarise.Onefactorthatcanbecrucialindeterminingcoatingperformanceandlifetimeistheresidualstressthatisgeneratedbythedepositionpr