MgAlSi系微晶玻璃的研究

253()Vol.25No.320069JournalofShandongUniversityofScienceandTechnology(NaturalScience)Sep.2006:1672-3767(2006)03-0078-03Mg-Al-Si3,,(,266510):XRDDTASEM,TiO2ZrO2,,8502h,12002h,350Mpa:;;:TB321:AStudyofMicro-crystalGlasswithMg-Al-SiSystemHANYe,SONGQiang,CAOGao2hui(CollegeofMaterialScienceandEng.,SUST,Qingdao,Shandong266510,China)Abstract:Therelationshipsbetweenheattreatmentmethodsandmechanicalpropertiesofmicro-crystalglasscontainingTiO2andZrO2asnucleatingagentsarestudiedbyusingXRD,DTAandSEM.Thechangingrelationshipsbetweenheattreatmentmethods,typesofcrystalphasesandme2chanicalpropertiesofmicro-crystalglassarediscussedinthepaper.Andthebestheattreatmentmethodisfound.Theflexuralstrengthoftheglass-ceramicscanreachatabout350Mpawhenitisheatedat850for2hoursandthenat1200for2hours.Keywords:micro-crystalglass;glass-ceramics;heattreatment,,[1-6],,,[7],,11.1MgO-Al2O3-SiO2[8],,MgO,Al2O3,SiO214.8%,35.16%,50.04%,TiO2ZrO2B2O3Na2CO3,100,1550,3h,,300,6002h1.2(DTA),200ZRY-2P,Al2O3,10/min,130013:2005-12-20:(1978-),,,,,.1Fig.1DTAcurveofglass1.3,1.5cm4,No.1No.2No.3No.448502h,No.110002h,No.211002h,No.311502h,No.312002h,No.412502h1.4X-Ray4XCu,Ka,20KV,40mA,5-75,4/min,2:2XFig.2XRDofglass-ceramicssamples1.5(),Nstron1195,GB/T6959-198656,11Tab.1Flexuralstrengthofglass-ceramicssamples/1100115012001250/Mpa267312348282433Fig.3Flexuralstrengthofglass-ceramicssamplesatdifferenttemperatures4,5%HF1.5min,,973:Mg-Al-Si,KYKY2800B,No.3No.4454No.3Fig.4SEMphotographofNo.35No.4Fig.5SEMphotographofNo.422.1,800,83510101140,2.2XRDXRD,11002h0,11502h,,12002h,12502h,2.3,8502h,12002h,,350Mpa2.4412002h,,5,12502h,,,3(1)TiO2ZrO2Mg-Al-Si800,;(2),;(3)8502h12002h,350Mpa,:[1],.[J].,1998,(1):44-47.[2],.[J].,2001,16(5):791-796.[3],.[J].,2001,151(3):42-43.[4],.[J].,2002,36(3):139-141.[5].TiO2[J].,1999,28(2):21-25.[6],.Bi2O3[J].,2003,10(2):32-35.[7],.[J].,2002,30(5):53-58.[8]WD.[M].:,1982:307.08()25