含碳耐火材料的防氧化方法

NAIHUOCAILIAO/2006,40(2)133135,1422006/2/NAIHUOCAILIAO133430081,,,,,,(C),,,,,,,,,C(O2),,,,31,,:1.1:,,COCO,C,C;,O2COC,,,O[1],[2]:;1.1.1AlSiMgCa,AlSi,AlSi,AlCO(g)C(s),Al2O3,C,:2Al(l)+3CO(g)=Al2O3(s)+3C(s)2.4,,C;Si:Si(s)+C(s)+O2(s)=SiO(g)+CO(g),COSiO(g)SiO2:SiO(g)+CO(g)=SiO2(s)+C(s),AlSi[3],AlSi,,(O2);,AlSiAl2OSiOO2CO2Al2O3SiO2,,,,,,Al1000CAl4C3,Al4C3:Al4C3+12H2O3CH4+4Al(OH)3,Al-SiAl-MgAl-Mg-Ca,Al-SiAl-Mg3:,1981,E2mail:[e-mail]:2005-06-30:2005-08-29:134NAIHUOCAILIAO/2006/2(),,C,,1.1.2(1)(SiC),,,,SiCSiO,SiOCCOSiO2,CO(g)C(s)SiO2C,CSiC:SiC(s)+CO(g)=SiO(g)+2C(s)SiO(g)+CO(g)=SiO2(s)+C(s)(2),,MgO-CAl2O3-CB4CCaB6ZrB2TiB2Mg-BMg-B[5],,B83%,Mg12%[5]:,B,BO2COB2O3(550),B2O3,,OC,C,B2O3Al2O3,11B2O3-Al2O3(3)AlNSi3N4,AlN[6]:(2673K),AlN,Al2O3C,:2AlN(s)+2CO(g)=Al2O3(s)+3C(s)+N2(g)2Si3N4,,,SiO2(s)C(s):Si3N4+6CO=3SiO2(s)+2N2(g)+6C(s)[7]:Si3N4,Si3N4AlAl4C3AlNSiC;Si3N4,,,,Si3N4Al2O3-SiC-C[8]1.2CO2,,C1000,,,,C800,;,O2C900,C,,60%75%,1000100h,10%[9]2,OC2006/2/NAIHUOCAILIAO1352.1,SiCSi3N4C,,ZrO2Y2O3ThO2O2,SiO2O2,[10],,,,:(1);(2);(3),;(4)2.22.2.1,,,,;,,,,1.61.8gcm-32.2.2,,,,,,,,,0.04mm70%90%[11]2.2.3,,[11],,0.340.56mm2.3:SiO21200,1200,;B2O31000C,1000,B2O3[10],:,;SiO2CSiC,C[12],,,,O,,[10],3,,,,,,-,-,,[1],..:,1990:51[2]RigaudM.Newadditivesincarbon2bondedrefractories.Ceramurgia,1997,27(2):81-87[3]U.AlSi.,1995,29(2):79-82[4]YamaguchiA,ZhangS,YuJ,etal.Behaviorofantioxidantsaddedtocarbon2containingrefractories.UNITECR95:341-348[5],,RigaudM..,1997,31(5):297-301[6],..,2003,28(1):40[7],,,..,1999,(5):18(142)142NAIHUOCAILIAO/2006/2[13]..,1990,24(1):22-27[14]..,1997,31(3):125-130[15],.TiO2Al-Si-Al2O3.,1996,21(10):45-49[16]TripathiHS,BanerjeeG.Effectofchemicalcompositiononsinte2ringandpropertiesofAl2O3-SiO2systemderivedfromsilimanitebeachsand.CeramicsInternational,1999,25(1):19-25[17]SenSK,AggarwalPS.EffectofTiO2andZrO2onsinteringofsilli2manite.CeramicsInternational,1994,20(5):299-302[18]MitraNK,MandalA,MaitraS,etal.EffectofTiO2ontheinterac2tionofdehydroxylatedkaolinitewithAl(OH)3gelinrelationtomullitisation.CeramicsInternational,2002,28(3):235-243[19]HongSH,MessingGL.Anisotropicgraingrowthindiphasic-gel-derivedtitania-dopedmullite.JAmCeramSoc,1998,81(5):1269-1277[20],,,.-.,2001,24(1):8-10[21],.ZrSiO4TiO2.,1998,32(4):192-194EffectofTiO2onAl2O3-SiO2systemrefractories/YinYucheng,LiangYonghe,WuYunyun,etal//NaihuoCailiao.-2006,40(2):139ThedistributionofTiO2inAl2O3-SiO2refractoriesespeciallyinhighaluminabauxitewassummarized.EffectsofTiO2onthestructuresandpropertiesofAl2O3-SiO2systemrefractorieswerealsointroducedbyanalyzingtheinter2re2actionbetweenTiO2,Al2O3,SiO2duringthesinteringprocessofAl2O3-SiO2rawmaterialandapplicationofAl2O3-SiO2products.Keywords:TiO2,Al2O3-SiO2systemrefractories,Structure,PropertiesAuthorsaddress:TheHuibeiProvinceKeyLabofCeramicsandRefractories,WuhanUniversityofScienceandTech2nology,Wuhan430081,China(135)[8],.2Si3N4Al2O3-SiC-C.,1992,(6):23-27[9],,,.():.,1997,(2):1-6[10]..,2000,34(1):20-22[11],,..,1991,25(3):168-170[12],..,1998,23(4):35-38Reviewofresearchonoxidationresistanceofcarbon2containingrefractories/LiXinjian,KeChangming,LiNan//NaihuoCailiao.-2006,40(2):133Accordingtotherequirementsofoxidationresistanceofcarbon2containingrefractories,thetechnologiesofaddingan2tioxidants,improvinganti2oxidationbysurfacesoakingandcoatingarereviewed.Inaddition,thecharacteristicsandan2ti2oxidationmechanismofallimprovinganti2oxidationmethodsarealsopresented.Ontheprinciplefoundation,there2searchdirectionofoxidationresistancetechnologiesforcarbon2containingrefractoriesissuggested.Keywords:Carbon2containingrefractories,Oxidationresistance,Antioxidants,Coatingtechnology,Surfacesoakingmeth2odAuthorsaddress:TheHubeiProvinceKeyLabofCeramicsandRefractories,WuhanUniversityofSci&Tech,Wuhan430081,China