Se基多光谱玻璃制备及其性能优化研究

发布时间：2018-04-10 04:10

本文选题：多光谱　切入点：硫卤玻璃　出处：《宁波大学》2017年硕士论文

【摘要】：近年来,红外(IR)技术在国防、空间技术以及经济现代化建设发挥的重要作用日益突出。随着红外市场的强劲增长和新的应用领域持续开拓,对透可见至红外的多光谱材料的需求也日益增长。硫卤玻璃作为多光谱材料不只在红外波段拥有较宽的透过范围,同时还可延伸至部分可见光波段,其性能随组分可调、宽的透过光谱并且成本低廉等特点而倍受广大科研工作者和应用厂家的关注。本文结合前人所做的一些工作总结,制备了一系列Ge-In(Ga)-Se-CsBr、GeGa-In-Se-CsBr、Ge-Ga-Se-RbBr系统硫卤玻璃,使用仪器测试与数值计算曲线拟合等辅助手段对样品的物理性能、热稳定性和光学性能进行研究和讨论。选用性能良好的60GeSe_2-25Ga_2Se_3-15CsBr组分作为大尺寸玻璃样品的制备,寻找性能优良且低成本的多光谱玻璃材料。论文的第一章为绪论部分,首先简要概述了多光谱玻璃材料和硫系玻璃,介绍了它们的发展历程和研究现状,进而提出本工作研究的内容、方法、目的及意义。第二章主要对Se基多光谱硫系玻璃中的几种常见性能,如成玻特性、光学性能等进行了简要的介绍。同时,对性能参数计算的理论基础等进行简要的回顾。第三章主要介绍了Se基多光谱硫系(卤)玻璃的研究方法,包括传统的硫系玻璃制备工艺流程及玻璃样品的各项性能测试,主要包括物理、热学及光学性能。第四章为多光谱硫系玻璃材料组分探索及优化研究,首先分别针对Ge-InSe-CsBr和Ge-Ga-In-Se-CsBr两组分的性能研究和分析。结果表明,掺Ga元素玻璃不仅在成本而且在性能上包括物理特性、热稳定性及光学特性均具有优势。因此,选取Ge-Ga-Se玻璃系统来制备大尺寸(直径φ30及以上)多光谱玻璃。第五章首先制备一系列GeSe_2-Ga_2Se_3-CsBr系统小尺寸(直径φ9)硫卤玻璃样品,使用仪器测试与数值计算曲线拟合等辅助手段对样品的物理性能、热稳定性和光学特性进行研究和讨论。结果表明,GeSe_2-Ga_2Se_3-CsBr具有良好的透过性能,满足其3个窗口的设计需求,同时热学性能也相对较稳定。通过优化设计,选取60GeSe_2-25Ga_2Se_3-15CsBr组分作为大尺寸多光谱玻璃制备的主要成份。采用熔融-淬冷制备传统工艺,研发提纯新工艺,制备了60GeSe_2-25Ga_2Se_3-15CsBr大尺寸(φ30)的高品质多光谱硫卤玻璃。第六章在Ge-Ga-Se系统中引入RbBr,制备了GeSe_2-Ga_2Se_3-RbBr新型三元系统硫卤玻璃样品,填补了含Rb硫卤玻璃的研究空白,确定了其玻璃形成区,同时对新型玻璃样品的主要物理参数、热学性能以及光学特性等进行了系统研究讨论,为此类玻璃的进一步应用奠定坚实的基础。第七章结论总结论文中的研究成果,同时指出在未来研究过程需要改进完善之处。
[Abstract]:In recent years, IR technology plays an increasingly important role in national defense, space technology and economic modernization.With the strong growth of infrared market and the continuous development of new applications, the demand for visible to infrared multispectral materials is also increasing.As a multispectral material, thiohalide glass not only has a wide transmission range in the infrared band, but also extends to some visible light bands, and its performance can be adjusted with the component.Wide spectrum transmission and low cost have attracted the attention of researchers and application manufacturers.In this paper, a series of Ge-InGe-Ge-Ce-CsBr-GeGa-In-Se-CsBr-Ge-Ge-Se-RbBr system thiohalide glasses have been prepared. The physical properties, thermal stability and optical properties of the samples have been studied and discussed by means of instrumental test and numerical calculation curve fitting.The 60GeSe_2-25Ga_2Se_3-15CsBr component with good properties was selected as the preparation of large scale glass samples to find the multispectral glass materials with good performance and low cost.The first chapter is the introduction. Firstly, the multispectral glass materials and sulfur glasses are briefly summarized, their development history and research status are introduced, and the content, method, purpose and significance of this work are put forward.In the second chapter, some common properties of se based multispectral sulfur glasses, such as glassy properties and optical properties, are introduced briefly.At the same time, the theoretical basis of performance parameter calculation is briefly reviewed.In chapter 3, the research methods of se based multispectral sulfur (halide) glasses are introduced, including the preparation process of traditional sulfur glasses and the testing of the properties of glass samples, including physical, thermal and optical properties.In chapter 4, the composition and optimization of multispectral sulfur glass are studied. Firstly, the properties of Ge-InSe-CsBr and Ge-Ga-In-Se-CsBr are studied and analyzed respectively.The results show that the Ga-doped glass has advantages not only in cost but also in properties, including physical properties, thermal stability and optical properties.Therefore, Ge-Ga-Se glass system is selected to prepare large size (diameter 蠁 30 and above) multispectral glass.In chapter 5, a series of small size (diameter 蠁 9) thiohalide glass samples of GeSe_2-Ga_2Se_3-CsBr system are prepared. The physical properties, thermal stability and optical properties of the samples are studied and discussed by means of instrumental test and numerical calculation curve fitting.The results show that GeSe2-GaS _ 2Se3-CsBr has good permeability and meets the design requirements of the three windows, and the thermal performance is relatively stable.The 60GeSe_2-25Ga_2Se_3-15CsBr component was selected as the main component in the preparation of large scale multi-spectral glass by optimal design.High quality multi-spectral thiohalide glasses with large size (蠁 30) of 60GeSe_2-25Ga_2Se_3-15CsBr were prepared by using the traditional melt-quenching process and a new process of purification.In the sixth chapter, we introduce RbBrs into Ge-Ga-Se system to prepare the GeSe_2-Ga_2Se_3-RbBr new ternary system thiohalide glass sample, fill the blank of the research of the Rb-containing thiohalide glass, determine the glass forming zone, and at the same time, the main physical parameters of the new glass sample are determined.The thermal properties and optical properties are systematically studied and discussed, which lays a solid foundation for the further application of this kind of glass.Chapter seven summarizes the research results and points out that the future research process needs to be improved.
【学位授予单位】：宁波大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ171.1

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