1. Shodhbhagirathi @ IITR
  2. METALLURGICAL & MATERIALS ENGINEERING
  3. MASTERS' THESES (MMD)
Please use this identifier to cite or link to this item: http://localhost:8081/jspui/handle/123456789/16545
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dc.contributor.authorKumar, B.V. Manoj-
dc.date.accessioned2025-05-28T15:57:04Z-
dc.date.available2025-05-28T15:57:04Z-
dc.date.issued2017-05-
dc.identifier.urihttp://localhost:8081/jspui/handle/123456789/16545-
dc.description.abstractSiC carbideceramicsarepromisingmaterialformechanical,specificallytribologicalapplicationsdue to theirhighhardnessandabilitytoretainstrengthathighertemperature.Thoughlowfracturetough- ness limitsitsapplication,useofcompositespreparedbyaddingvariousreinforcementsareattractive alternative.Inthiswork,fracturebehavior,slidingwearmechanismsanderosionwearmechanisms of Siliconcarbide-titaniumcarbonitridecompositesarereported.Fracturesurfacesofmonolithic silicon carbideshowedbrittlefracturebytransgranularmodeoffracturewhereastransgranularmode of fracturealongwithgrainpulloutandparticlepulloutwasobservedintitaniumcarbonitrideadded ceramic composite.Frictionandslidingwearpropertiesofcompositeswerestudiedunderunlu- bricated moderatelyhumidenvironmentatN,10N,20Nloadingconditions.Coefficientoffriction variedbetween0.2to0.4butlittleeffectofloadwasobserved.Significantreductioninslidingwear volumewasobservedbytheadditionoftitaniumnitrideunderhighloadingslidingwearconditions. At lowerloadsreductioninslidingwearvolumeinnotprominant.WornsurfaceanalysisandRaman spectroscopyrevealsinterplayoftwodifferentslidingwearmechanisms.Atlowerloadsmechanical brittle fractureisdominantwearmechanismbutathigherloadstribochemicalwearmechanismsare also prominent.Positiveeffectonerosionwearvolumeduetotitaniumcarbonitridepresenceisalso observed.Wornsurfaceanalysisshowsmechanicalfractureasdominantmechanismformaterial removal.WithTiCNcontentincrementplasticdeformationofcompositesisincreased.en_US
dc.description.sponsorshipINDIAN INSTITUTE OF TECHNOLOGY ROORKEEen_US
dc.language.isoenen_US
dc.publisherIIT ROORKEEen_US
dc.subjectSiC Carbideceramicsen_US
dc.subjectTitaniumcarbonitrideen_US
dc.subjectFracturebehavioren_US
dc.subjectSlidingwearen_US
dc.titleTRIBOLOGICAL STUDIES OF SILICON CARBIDE -TITANIUM CARBONITRIDE COMPOSITESen_US
dc.typeOtheren_US
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