Designation:C1286–94StandardClassificationforAdvancedCeramics1ThisstandardisissuedunderthefixeddesignationC1286;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisclassificationcoversasystembywhichadvancedceramicsmaybeclassified.Thesystemhasbeendevisedtocoveralltypesofadvancedceramicsintheformsofinorganicprecursorsforceramicpowderproduction,powders,granularforms,fibers,whiskers,platelets,singlecrystals,consolidatedpolycrystallineceramics,amorphous(glassy)andcompositematerials,andcomponentsinblockandcoatingforms.Thestructureoftheclassificationsystemiscodedtobemachinereadable.1.2TheclassificationsystemhasbeendevelopedthroughaninternationalcollaborationundertheauspiceoftheVersaillesAdvancedMaterialsandStandardsProject(VAMAS)Techni-calWorkingArea14,andwithsupportfromtheCommissiontotheEuropeanCommunities,ASTMInstituteofStandardsResearch,andtheJapanFineCeramicsAssociation.Itscon-structionwasbasedontheresultsofaninternationalsurveyofrequirementsamongmanufacturinganduserindustries,andrecommendationsprovidedataninternationalworkshopheldatIspra,Italy,inJune1990.1.3Thepresentrangeofproductsthatisencompassedbythetermadvancedceramicsoroneofitssynonymsisenormousinbreadth,andcomplexinchemistry,form,process-ingroute,andpropertyattributes.Normally,therearecloseinterlinksbetweenthesefactors.Ithasthereforebeenimpos-sibletodeviseasimplehierarchialscheme,suchasthatusedinIEC672forelectrotechnicalceramicsforinsulators.Thesystemdevelopedandincorporatedinthisclassificationisnovelinmanyrespectstoencompassallforeseenrequirementsandpurposes,andallrawandmanufacturedmaterialsandapplications.Ithasgreatflexibilityandisamenabletocom-puterrecognitionandprogramming.1.4SystemConstraints—Itisnotthepurposeofthisclas-sificationtospecifyhowthesystemshallbeused.Theuserisabletodefinethec...
