差热-拉曼光谱联用系统的搭建及其在熔盐相图测定实验中的运用

Assembly of DTA-Raman Spectroscopy Hyphenated System and Its Application in Determining the Phase Diagram of Molten Salts

通过元件和设备的拼装方式创建新的研究方法,这是科技创新的重要途径之一。本项目以差热-拉曼光谱联用测量系统的搭建为例,利用实验室现有的设备单元组建差热分析部件,将其设计成可适用于拉曼光谱测量的差热分析(DTA)平台,并将所制的差热-拉曼联用系统用于研究混合熔盐的相变过程。通过仪器组建和实验测量过程,学生可以深入了解差热分析的原理,认识到多种实验技术联合使用产生的增强效应。更为重要的是,他们能够学习如何利用手边的元件单元创立新研究方法。因此,这个实验项目能够有效提高学生的创新能力和科研能力。此外,该系统涉及的差热分析平台、数据采集系统和相图测量等方面都能够开展进一步的改进和升级,这就保证了这个开放实验教学项目具有可持续的创新教学功能。

Developing a novel research method by assembling elements and equipment is a significant way of innovation in science and technology.Considering the assembly of DTA-Raman hyphenated system as an example,the modules available in a laboratory were assembled to form a differential thermal analysis(DTA)section.This section was designed to meet the practical conditions for Raman spectral measurement.The phase transition of mixed molten salts was investigated using this DTA-Raman spectroscopy hyphenated system.Through the construction and measuring process,students can understand the principle of DTA in detail and recognize the enhancement effect from the combined use of several experimental techniques.Furthermore,they will learn to establish a new research method from the available materials.Therefore,this experimental teaching case can effectively contribute to the improved creativity and scientific research ability of the students.Finally,this experiment can further improve the aspects of the DTA test platform,data acquisition unit,and phase diagram determination.Thus,sustainable innovation can be expected from this open experimental teaching project.