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.doc

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】The glass-ceramic is a kind of inorganic nonmetal materials that contain the uniform distribution of micro crystal and glass phase. It is widely used in mechanical, optics, electronics and microelectronics, biological medicine and chemical materials etc. The Sm3+ ion doped ZnO-Al2O3-SiO2 system glass-ceramics were prepared by melting and crystallization.When the base glass composition is changeless, The crystallization and optical properties of the Sm3+ ion doped ZnO-Al2O3-SiO2 system glass-ceramics were studied by doping the different nucleation agent TiO2, ZrO2 and P2O5. The heat treatment system of crystallization is draw up by Differential Scanning Calorimetry (DSC); The crystalling phase in different heat condition is observed by X-ray diffraction (XRD), and the crystalling phases of the ZnO-Al2O3-SiO2 system glass-ceramics are Zn2SiO4 and Zn1Al2O4; The structure and morphology of glass-ceramics are observed by scanning electron microscopy (SEM), and the average grain size estimated by the measuring scale is about 1030nm, The optical transmittances of the base glass and glass-ceramic are measured by UV-Vis-NIR spectrophotometer. with the rise of temperature and time of heat treatment, The optical transmittance will have a trend to decrease. Its highest optical transmittance can reach 90% in the near infrared area; The optical properties of Sm3+ ion in the ZnO-Al2O3-SiO2 system glass-ceramic was studied by fluorescence spectroscopy, The results show that the fluorescent characteristics of Sm3+ion is stronger in glass-ceramic than in base glass. And the heal treatment condition is different, the intensity of emission peak in floorescence spectrum is also different.【关键词】ZAS系 微晶玻璃 钐掺杂【英文关键词】ZAS system Glass-ceramic Sm3+-doped【目录】钐掺杂透明ZnO-Al_2O_3-SiO_2系微晶玻璃的制备及表征摘要4-5ABSTRACT5目录6-8第一章 绪论8-221.1 引言81.2 微晶玻璃概况8-161.2.1 微晶玻璃的特性8-91.2.2 微晶玻璃的分类91.2.3 微晶玻璃制备工艺流程9-121.2.4 微晶玻璃的合成方法12-141.2.5 微晶玻璃的应用14-161.3 稀土掺杂微晶玻璃研究进展16-191.4 ZAS系微晶玻璃研究进展19-211.5 本文的主要研究内容21-22第二章 实验方法与原理22-272.1 实验原料222.2 实验仪器22-232.3 实验过程23-252.3.1 实验工艺流程232.3.2 原料分析23-242.3.3 添加剂分析24-252.3.4 制备过程252.4 性能表征25-27第三章 ZAS系微晶玻璃的合成27-323.1 玻璃原料配方273.2 差示扫描量热分析27-283.3 X射线衍射分析28-293.4 扫描电子显微镜分析29-303.5 光透过率分析303.6 本章小结30-32第四章 Sm(3+)掺杂ZAS系微晶玻璃的合成32-384.1 原料组成324.2 差示扫描量热分析32-334.3 X射线衍射分析334.4 扫描电子显微镜分析33-344.5 光透过率分析34-354.6 荧光光谱分析35-374.7 本章小结37-38第五章 ZrO_2为晶核剂的Sm(3+)掺杂ZAS系微晶玻璃的合成38-445.1 原料组成385.2 差示扫描量热分析38-395.3 X射线衍射分析395.4 扫描电子显微镜分析39-405.5 光透过率分析40-415.6 荧光光谱分析41-435.7 本章小结43-44第六章