基于TGA-DTA联用技术的本科生开放性创新实验探索  

Exploration of undergraduate open innovation experiment based on TGA-DTA united technique

作　　者：王渊博[1] 吕晓霞[1] 韩丽平 Wang Yuanbo;Lv Xiaoxia;Han Liping(Department of Materials Science and Engineering,Jilin University,Changchun 130025,China)

机构地区：[1]吉林大学材料科学与工程学院,吉林长春130025

出　　处：《现代科学仪器》2021年第3期90-94,共5页Modern Scientific Instruments

基　　金：吉林大学开放性创新实验项目(一种新型铸造中碳中铬模具钢的高温氧化特性研究),项目编号:436OEP72。

摘　　要：热分析方法是材料分析测试领域的重要实验技术,可以对金属材料的相变、氧化动力学等过程进行分析研究。热分析仪器一般构造精密、价格昂贵,在课内实验教学中学生难以实现对设备独立操作和深入理解。因此,依靠吉林大学本科生开放性创新实验平台,开设了基于TGA-DTA联用技术的课外实验项目,通过增加实验学时提供学生独立自主的操作机会,学生结合具体实验材料、形成完整实验方案,加深其对热分析原理和材料特性的系统理解,同时也有利于教学方法及实验室管理模式的改进与提升。Thermal analysis is an important experimental technology in the field of material analysis and testing,for metal materials,it can be used to analyze and study the phase transition,oxidation kinetics process,etc.Since the thermal analysis instruments both have precise structure and expensive price,it is difficult for the students to acquire independent operation and deep understanding of the equipment in the in-class experimental teaching.Therefore,the experiment project based on TGA and DTA technique was set up relying on the undergraduate open innovation experiment platform of Jilin University.Increased experimental teaching hours provides students with the opportunity for independent operation,and they could design a complete research plan with some specific experimental materials,all of these will lead to a better understanding of thermal analysis principle and material characteristics for the students.At the same time,it is also conducive to the improvement of teaching methods and laboratory management mode.

关 键 词：TGA-DTA 开放性创新实验 氧化动力学 氧化激活能 

分 类 号：G642.0[文化科学—高等教育学]