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PostPosted: Mon 2:08, 06 Dec 2010    Post subject: tory burch Crystallization temperature on physical

Dental crystallization temperature on the physical properties of glass


mSoc, 1996.78 (5) ,1217-1222 [6] GrossrnanDG. _J:. JAmCeramSoc. 1972,55 (9) :446-4 pelican. [7] MV Swain, GUO Jing-Kun. Structure and properties of ceramics [M Science Press, 1999.22524 day [8] JamesP [J]. AdvCeram. 1982,4 (1) :1-29. [9] J ~ cksonKA. If] ProgSolidStateChemt1967t4 (1): 5380. Author: sac YAN Jun (1972 a),tory burch, male. Jiaozuo,true religion jeans, Henan people,ugg stivali, in the PhD. Hubei Medical University in 1998, received medical degree. School of Stomatology,ugg prezzo, Fourth Military Medical University now,ugg boots günstig, studying under Professor Wang Zhongyi, in dental materials. Influences0fcrystallizati0ntemperatureOilphysicalpropertiesofmica-basedglass-ceramicsfordentalrestorationsQINYan-iun, WANGZhong-yi, TIANfie-rflo. , CA0Xiao-gang (1StomatologicalCollege, FourthMilitaryMedica [University.Xj 'an710038China; 2.StateKeyLaboratoryofNewCeramicsandFineProcessingtTsinghuaUniversity.Beijing100084.China) Abstract; AccordingtotherequirementsofdentalrestorativematerialstK} (NMgO-MgF-Sit) 2glass-ceramicssystemwaschosentomakeamachinabletetrasiIic/efluormicaglass-ceramicsusedfordentalCAD/CAMrestorateensandtheinfluenc ~ softhreedifferentcrystallizationtemperature8onitsphys/calpropertieswereinvestigated. Differentialthermalanalysis (DTA). X-rayd/ffraetometer (XRD) andscanningelectronmicroscopy (SEM) wereusedtoobservethecrystaIl / zationbehavior, crystalphasesandmicrostructuresoftheglass-ceramics. PhysicalpropertiesoItheglass-ceramicswerecompared. Theresultssh0wthatimprovingcrystallizationtem-peratureCallincreasethegrainsizesofthemicaandimprovethethree-pointbendinsstrengthandfracturetoughnessoftheglass-ce-ramics. VickershardOCSSandtheindexofbrittlenessdecreasewithincreasingoftemperature. butdensityisnotatfeciedbytempera-turechanges. Keywords: gl ~ ss-ceramics; tetraslllclcfluormica; indexofbrittleness \
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