新型含钆硫化物玻璃的制备与性能.pdf

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1、第3Z卷第3期硅酸盐学报Vol.3Z9No.3Z004年3月JOURNALOFT~EC~INESECERAMICSOCIETYMarch9Z004新型含钆硫化物玻璃的制备与性能聂佳相1!赵东辉1!陈玮1!陈国荣1!Z~ANGianghuaZ!MA~ongliZ!ADAMJean-LucZ(1.华东理工大学无机材料系9上海Z00Z379Z.LaboratoiredesVerresetCramiCues9UniversitedeRennesI9RennesCedeX9France)摘要!研究了新型含钆硫化物玻璃9测试了玻璃的红外透射光谱显微硬度密度等性能以及RD9DSC曲线O实验结果表明C

2、Gd在GeS二元系统玻璃的富锗区具有较好的溶解性9最高引入量可达5%(摩尔分数)9但随引入量的增加析晶倾向增强O含钆硫化物的玻璃形成能力还随网络形成体Ge含量的减少而降低O含钆硫化物玻璃的透红外性能与GeS二元系统玻璃相似9但氧杂质吸收峰被消除或减弱9截止波长略有红移O其原因为前者可归于钆原子的较高负电极电位特性9后者与系统声子能量的降低有关O含钆玻璃的转变温度和显微硬度显著提高9这与玻璃结构的致密化和微晶化有关O关键词!硫化物玻璃9钆9红外光谱9微晶化中图分类号!T@171.1文献标识码!A文章编号!04545648(Z004)030Z7406PREPARATI0NANDPR0PERTI

3、E0FN0VELGd-C0NTAININGULFIDEGLAE19ZHAODOnghui19CHENWei19CHENGuOrOng19ZHANGxianghuaZ9MAHOngliZ9ADAMjean-LucZNIEjiajiang(1.DepartmentofInorganicMaterials9EastChinaUniversityofScienceandTechnology9ShanghaiZ00Z379China9Z.LaboratoiredesVerresetCramiCues9UniversitedeRennesI9RennesCedeX9France)AbstractCTh

4、enovelGd-containingsulfideglasseswereinvestigated.Someglasspropertiesincludinginfraredspectra9micro-hardness9densityandthecurvesofRDandDSCweretested.EXperimentalresultsshowthatGdcationshavefairlygoodsol-ubilityintheGe-richregionoftheGeSbinarysystemglasswherethemaXimumGdcontentcanbereachedto5%inmol

5、e9butthetendencyofcrystallizationriseswiththeincreaseofGdcontent.TheglassformingabilitydecreasesasthecontentofnetworkformerGedecreases.ItisfoundthatastheresultofGd-inducedtheoXygenimpuritiesabsorptionbandsareremovedandweakened9whichisattributedtothehighernegativeelectrodepotentialofGdatom.TheIRcut

6、-offedgeoftheGd-contai-ningglassshowsaslightshifttothelongerwavelengthduetotheheavierreducedmassofthesystem.ThenotableincreasesofglassmicrohardnessandtransitiontemperatureareduetoGdaddition9whichisrelatedtotheointeffectsofstructuredensifi-cationandmicrocrystallizationprocess.KeywordsCsulfideglasse

7、s9gadolinium9infraredspectra9microcrystallization非氧化物玻璃是当前材料科学中的研究热点之一9它的推动力是光学光电子学半导体科学等领收稿日期!Z0030914O修改稿收到日期!Z0031103OReceiveddateCZ0030914.ApproveddateCZ0031103.基金项目!上海市重点学科建设项目资助OBiographyCNIEJiaXiang(1979