简介：UpontheinvitationbytheRefractoriesAssociationofGreatBritain,DMGMidiaLtd,UnitecCeramicsLtd,LAEISBucherGmbHandNaberthermCeramicsLtd,theAssociationofChinaRefractoriesIndustry(ACRI)dispatchedadelegationconsistedoftenpersonstopayanofficialvisitattheaboveorganizationsandcompaniesduringOctober9thto25th,2001.Thefollowingarethehighlights.
简介：NickelnitratewasintroducedintocarbonblocksbyusingECAaggregatesascatalyst-carrier.TheNi-containinganthraciteaggregateswerefirstlypreparedbymixinganthraciteaggregatesinnickelnitrateethanolsolutionandthenincorporatedintocarbonblocksafterpre-treating.Thephasecomposition,microstructureandpropertiesofallcarbonblocksfiredat1000℃or1400℃inacokebedwerestudiedwiththeaidofanX-raydiffractomer,afieldemissionscanningelectronmicroscope,amercuryporosimetryandalaserthermalconductivitymeter.TheresultsshowedthattheadditionofNi-containinganthraciteaggregatespromotedtheformationofone-dimensionalnanocarbonandβ-SiCwhiskersat1000℃andthegrowthofβ-Sialonat1400℃,respectively.Moreover,thecoldcompressivestrengthandmicroporositycharacteristicsofthecarbonblockswiththeadditionofNi-containinganthraciteaggregateswereenhancedandthethermalconductivitywasremarkablyimprovedattributingtothehighheatconductivenetworkformedbytheceramicphases.
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