简介:October18-21,2012,Zhengzhou,HenanProvince,ChinaOrganizedbyChineseCeramicSocietyandChineseSocietyforMetalsRefractoriesServingLowCarbonEconomyTopicsRefractoriesfo
简介:October18-21,2012,Zhengzhou,HenanProvince,ChinaOrganizedbyTheChineseCeramicSocietyandTheChineseSocietyforMetalsRefractoriesServingLowCarbonEconomyTopicsRefractoriesforinsulatingandnewenergyareasEnergyconservation,recyclingandeco-friendlyissuesRefractoriesforironandsteelindustryRefractoriesforcement,glassandceramicsindustries
简介:Inthepresentpaper,novelsidewallmaterialsforaluminumreductioncellwerepreparedinairusingmagnesiaandmagnetiteasstartingmaterials.ThesinteringbehaviorsofthespecimenswereinvestigatedbymeansofX-raydiffraction(XRD)andscanningelectronmicroscope(SEM).AndcorrosiontestsinaNa_3AlF_6-AlF_3-K_3AlF_6bathwereconductedtoevaluatetheelectrolytecorrosionresistance.TheresultsshowthattheFe_3O_4phaseistransformedintoFe_2O_3athightemperatures,whichinturnreactswiththeMgOaddedtoformMgFe_2O_4spinel.AndwithincreasingtheMgOcontentfrom0to30mass%,densificationofthespecimensdecreasesmainlyduetolargervolumeexpansionresultingfromformationofmoreMgFe_2O_4.ThecorrosiontestsshowthatcorrosionlayersareproducedinalltheMgOaddedspecimens.However,forspecimenscontainingMgFe_2O_4phaseonly,Mg(Al,Fe)_2O_4compositespinellayersarealsogenerated,whichremarkablyimprovethecorrosionresistanceofthespecimens.