Experimental study and thermodynamic assessment of the   dysprosium-hydrogen binary system

doi:10.1016/j.jallcom.2016.11.182

CORC > 北京大学 > 化学与分子工程学院

	Experimental study and thermodynamic assessment of the dysprosium-hydrogen binary system
	Fu, Kai ; Li, Guoling ; Li, Jigang ; Liu, Yang ; Tian, Wenhuai ; Li, Xingguo
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2017
关键词	Rare earth hydrides Pressure composition isotherm Phase diagram Thermodynamics RARE-EARTH HYDRIDES GADOLINIUM DIHYDRIDE LATTICE-PARAMETERS CRYSTAL-STRUCTURES CERIUM-HYDROGEN THIN-FILMS H SYSTEMS DY PRESSURE DEUTERIUM
DOI	10.1016/j.jallcom.2016.11.182
英文摘要	The dysprosium-hydrogen (Dy-H) binary system in the full range of H/Dy = 0 to 3.0 is investigated by accurate pressure composition isotherm (PCI) measurement, including a PCI measurement of the beta-DyH2/g-DyH3 transition for the first time. The Dy/beta-DyH2 biphasic region shows well defined plateaus in the range of H/Dy = 0.41 to 1.65 at 650 degrees C and gradually shrinks to 0.54 to 1.23 at 900 degrees C, with transition enthalpy of 213.1 +/- 2.8 kJ/mol H-2. The beta-DyH2/g-DyH3 biphasic region also shows well defined plateaus from 250 degrees C to 325 degrees C, but with much narrower composition region of H/Dy from 2.3 to 2.9. The transition enthalpy is 79.3 +/- 2.2 kJ/ mol H-2. The phase diagram and thermodynamic parameters are calculated with the CALPHAD method using the measured PCI data. The obtained results are in very good agreement with our experimental data and the published data reported in literature. The results provide more comprehensive and quantitative insights into the key thermodynamic properties of the Dy-H system. (C) 2016 Elsevier B.V. All rights reserved.; SCI(E); ARTICLE; 60-66; 696
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474675]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Fu, Kai,Li, Guoling,Li, Jigang,et al. Experimental study and thermodynamic assessment of the dysprosium-hydrogen binary system[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017.
APA	Fu, Kai,Li, Guoling,Li, Jigang,Liu, Yang,Tian, Wenhuai,&Li, Xingguo.(2017).Experimental study and thermodynamic assessment of the dysprosium-hydrogen binary system.JOURNAL OF ALLOYS AND COMPOUNDS.
MLA	Fu, Kai,et al."Experimental study and thermodynamic assessment of the dysprosium-hydrogen binary system".JOURNAL OF ALLOYS AND COMPOUNDS (2017).