摘要
简要介绍了利用差示扫描量热法(differential sanning calorimetry,DSC)中的连续测试法测量等压热容的基本原理,实验分析了恒温段的设定条件、升温速率、样品致密度、样品特性等因素对等压热容结果的影响.最终得到了一组通用且合理的实验参数,为后续采用DSC测量不同体系的等压热容数据奠定了坚实的基础.
The basic principle of continuous test method in differential scanning calorimetry(DSC)for measuring isobaric heat capacity was briefly introduced in this paper.The effects of setting conditions in the constant temperature section,heating rate,sample density and sample characteristics on the isobaric heat capacity results were analyzed by experiments.Finally,a set of general and reasonable experimental parameters was obtained,which laid a solid foundation for the subsequent DSC measurement of isobaric heat capacity data in the different systems.
作者
侯志金
张晓宇
谢伟
曹战民
HOU Zhijin;ZHANG Xiaoyu;XIE Wei;CAO Zhanmin(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《中国科技论文在线精品论文》
2020年第2期221-226,共6页
Highlights of Sciencepaper Online
关键词
冶金物理化学
差示扫描量热法(DSC)
等压热容
影响因素
metallurgical physical chemistry
differential scanning calorimetry(DSC)
isobaric heat capacity
influencing factors
作者简介
侯志金(1993—),男,硕士,主要研究方向:实验相图测定和计算热力学;通信联系人:曹战民,教授,主要研究方向:相图与热力学、火法冶金过程物理化学、冶金过程模拟.E-mail:zmcao@ustb.edu.cn
