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UNITECRUNITEC

    UNITECR

    TANQinghua,WUAijun,SUNHonggang,etal

    ,l,??????—?—?—??_

    r.I_1l-1

    (1)AppropriateamountsofmZrO2micropowder

    andY203powdercanpromotethesinteringpropertyof calciastabilizedzirconiaproducts,andthesintering propertyisbetterwhenmZrO2micropowderadditionin

    matrixis5%10%andY,Opowderadditioninma

    trixis1%.

    (2)TheXRDpatternsshowthatthemainphase

    compositionsofzirconiaproductsfiredat1700?are

    cZrO2andmZrO2,andnot-ZrO2isf0und.

    (3)TheSEMmierographsshowthatthemicro

    structureofthespecimencontainingadditivesisobvi

    ouslydifferentwiththespecimenwithoutadditivesafter firingat1700.matrixgrainsrearrangeandgrowin thespecimenscontainingadditives~rmingpermeable networkpore,andtheprocessofthegraingrowthhelps thegasreleaseduringsintering,sotherelativedensity ishigherinsinteredspecimenscontaininganappropri

    ateamountofadditives.

    [1]ShuklaSandSealS.Phasestabilizationinnanocrystalline zirconia.ReviewsonAdvancedMaterialsScience,2003, 5:117120.

    [2]ZavodinskyVG,ChibisovAN.Zirconiananoparticlesand nanostructuredsystems.JournalofPhysics,2006,29:173

    l76.

    [3]JensEichler,UlrichEisele,JuirgenRode1.Mechanical propertiesofmonocliniczirconia.JournalofTheAmerican CeramicSociety,2004,87:14011403.

    [4]ChfistosG,Kontoyannis,GeorgeCarountzos.Quantitative determinationofthecubic-to--monoclinicphasetransforma?? tioninfullystabilizedzirconiasbyramanspectroscopy. JournalofTheAmericanCeramicSociety,1994,77:2191

    2194.

    [5]EtsellTH,FlengasSN.Electricalpropertiesofsolid oxideelectrolytes.ChemicalReviews,1970,70:339

    376.

    [6]SubbaraoEC,MaitiHS.Solidelectrolytewithoxygenion conduction.SolidStatelonics,1984,11:317338.

    [7]TanQinghHa,GengKeming,WuAijun,eta1.Effectof stabilizeronphasecomposition,microstructure,andprop

    eniesofzirconiaproductsFrontiersofModernChemical Engineering,MetallurgyandMaterialTechnologies,2009: 15281533

    ReceivedinJune,2010

    HostedbyTheTechnicalAssociationofRefractories, Japan,12UnifiedInternationalTechnicalConferenceon Refractories(UNTECR)willbeheldinKyoto,Japanffom Ocf.31ioNov.2.2011.

    RefractoriesforIron&Steel,Non-ferrousMetallurgy, Glass,Ceramics,Cement&LimePetrochemicaI, WastelncinerationandOthers

    EnvironmentalSustainabilityandRecycling

    AdvancesinRefractoryBasicScience Nano--EngineeredRefractories

    RefractoryApplicationsofCeramics RawMaterialSelectionandApplication RefractoryEngineeringSystemsandDesign AdvancesinManufacturing,InstallationandEquipment

    ProcessControl,QualityControlandQualityAssurance

    NewTestsandTestingDevelopment

    EducationandTraining

    Thedeadlineforabstractsubmission:: Thedeadlineforfinalpaper:

    PresidentofUNITECR2011

    NoboruTsukamoto

    VicePresidentofUNITECR2011

    TsuneoKayama

    SecretariatofUNlTECR2011

    YokoYoshii

    TheTechnicaIAssociationofRefractories.Japan NewGinzaBldg..7-313Ginza,Chuo-ku,

    Tokyo104-0061,Japan

    Te}:+81335720705

    Fax:+813.35720175

    E-mail:unitecr-info@tarj,org

    ..?'一专-:_

    Mr.EizoMaeda

    c/oNipponTravelAgencyCo.,Ltd.

    YotsuyaTNBtdg.4F

    11,Samon-cho,Shinjuku-ku,Tokyo104-0017,Japan

    E-mail:unitecr-chair@tarj.org

    China'sRefractoriesVo1.19,No.4.201029

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