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1、ZAS系论文：钐掺杂透明ZnO-Al_2O_3-SiO_2系微晶玻璃的制备及表征【中文摘要】微晶玻璃是一种微晶体和玻璃相均匀分布的新型无机非金属材料,广泛的应用于机械力学、光学、电子与微电子、生物医学和化学化工材料等领域。本文采用熔融-晶化法制备了Sm3+掺杂ZnO-A1203-SiO2系微晶玻璃,在基质玻璃组成不变的情况下,研究了不同晶核剂Tio2、ZrO2和P205对Sm3+掺杂ZnO-A12O3一SiO2系微晶玻璃析晶性能及光谱性质的影响。通过差示扫描量热分析(DSC),制定出玻璃的晶化热处理制度；通过X射线衍射(XRD),观察不同热处理
2、条件下,晶相的变化,并确定其晶相为Zn2SiO4和ZnAl2O4；通过扫描电子显微镜(SEM),观察微晶玻璃的结构与形貌,并利用比例尺估算出晶粒平均尺寸大约在10-30nm;通过紫外-可见-近红外分光光度计(UV-Vis-NIR),测定微晶玻璃的光透过率,随着热处理温度的升高和热处理理时间的增加,透过率会有降低趋势,其在近红外区域光透过率最高可达90%;通过荧光光谱研究了Sm3+在ZnO-Al2O3-SiO2系微晶玻璃中的光学性质,Sm3+在微晶玻璃中比在基质玻璃中的发光性能强,并且热处理条件不同,荧光光谱中发射峰的强度也不同。【英文摘要】Th
3、eglass-ceramicisakindofinorganicnonmetalmaterialsthatcontaintheuniformdistributionofmicrocrystalandglassphase.Itiswidelyusedinmechanical,optics,electronicsandmicroelectronics,biologicalmedicineandchemicalmaterialsetc.TheSm3+iondopedZnO-Al2O3-SiO2systemglass-ceramicswereprepa
4、redbymeltingandcrystallization.Whenthebaseglasscompositionischangeless,ThecrystallizationandopticalpropertiesoftheSm3+iondopedZnO-Al2O3-SiO2systemglass-ceramicswerestudiedbydopingthedifferentnucleationagentTiO2,ZrO2andP2O5.TheheattreatmentsystemofcrystallizationisdrawupbyDif
5、ferentialScanningCalorimetry(DSC);ThecrystallingphaseindifferentheatconditionisobservedbyX-raydiffraction(XRD),andthecrystallingphasesoftheZnO-Al2O3-SiO2systemglass-ceramicsareZn2SiO4andZn1Al2O4;Thestructureandmorphologyofglass-ceramicsareobservedbyscanningelectronmicroscopy
6、(SEM),andtheaveragegrainsizeestimatedbythemeasuringscaleisabout10～30nm,Theopticaltransmittancesofthebaseglassandglass-ceramicaremeasuredbyUV-Vis-NIRspectrophotometer.withtheriseoftemperatureandtimeofheattreatment,Theopticaltransmittancewillhaveatrendtodecrease.Itshighestopti
7、caltransmittancecanreach90%inthenearinfraredarea;TheopticalpropertiesofSm3+ionintheZnO-Al2O3-SiO2systemglass-ceramicwasstudiedbyfluorescencespectroscopy,TheresultsshowthatthefluorescentcharacteristicsofSm3+ionisstrongeringlass-ceramicthaninbaseglass.Andthehealtreatmentcondit
8、ionisdifferent,theintensityofemissionpeakinfloorescencespectrumisalsodiffer
