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Prof.ISigalasPosition: ElementSixProfessorofCeramicSciencePhone: 011-717-7502Email: iakovos.sigalas@wits.ac.zaOrganisationalUnit: ChemicalandMetallurgicalEngineeringRoom: RichardWardBuilding,Room406

ResearchInterestsHardandUltrahardmaterials,ultrahightemperatureceramics,biocompatibleceramics

Publications93publications,31patents

RecentPublications:1. Effect of cubic boron nitride grain size in the reinforcing of α- Sialon ceramics

sintered via SPSGarrett, J.C,Sigalas, I.Wolfrum,A.K.,Herrmann,M Journal oftheEuropeanCeramicSocietyVolume35, Issue2,1February2015,Pages451-462

2. PerformanceofmixedceramicsandCBNtoolsduringhardturningofmartensiticstainlesssteel.Sobiyi,K. ,Sigalas,I ,Akdogan,G. ,Turan,YInternationalJournalofAdvancedManufacturingTechnology.201577(5-8),pp.861-871

3. Sparkplasmasinteringofsub-microncopperreinforcedwithruthenium–carbonnanotubecompositesforthermalmanagementapplications.R.Sule,P.A.Olubambi,I.Sigalas,J.K.O.Asantec,J.C.Garrett,W.D.Roos.SyntheticMetals202(2015)123–132

4. CharacterizationofTiO2-MnO2compositeelectrodessynthesizedusingsparkplasmasinteringtechnique.Tshephe,T.S.Olubambi,P.A.Sigalas,I.Ozoemena,K.I.Garrett,J.Sule,R.PowderTechnology.Volume277,June01,2015,Pages303-309

5. ChipformationCharacterizationandTEMinvestigationofwornPcBNtoolduringhardturning.MachiningScienceandTechnology.201519(3)pp.479-498

6. Fe-B-Ccompositesproducedusingsparkplasmasintering.Rokebrand,P.,Sigalas,I.InternationalJournalofRefractoryMetalsandHardmaterials.Volume49(1),2015,pp.320-326

7. Ike,I.S.,Sigalas,I,Iyuke,S,Understandingperformancelimitationandsuppressionofleakagecurrentorself-dischargeinelectrochemicalcapacitors:Areview(Review).PhysicalChemistryChemicalPhysics.Volume18,Issue2,19November2015,Pages661-680

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8. HighSpeedMachiningofMartensiticStainlessSteelUsingPcBN.Sobiyi,K.andSigalas,I.,JournalofSuperhardMaterials,2016,Vol.38,No.1,pp.35–40

SpecialInterestsPolycrystallineDiamond,Polycrystallinecubicboronnitride,Carbonfibre-reinforcedUltrahighTemperatureceramics,cuttingtoolmaterials.

AffiliationsMemberofSouthAfricanInstituteofPhysics

OtherInterestsTitaniumandPlatinumalloydevelopment.

TeachingStructureandPropertiesofmaterials,Ceramicmaterials.CoursesdeliveredatSchoolofChemicalandMetallurgicalengineering,UniversityoftheWitwatersrand.