Study on the thermodynamics of the gadolinium-hydrogen binary system   (H/Gd=0.0-2.0) and implications to metallic gadolinium purification

doi:10.1016/j.jallcom.2016.02.201

CORC > 北京大学 > 化学与分子工程学院

	Study on the thermodynamics of the gadolinium-hydrogen binary system (H/Gd=0.0-2.0) and implications to metallic gadolinium purification
	Fu, Kai ; Li, Guoling ; Li, Jigang ; Liu, Yang ; Tian, Wenhuai ; Zheng, Jie ; Li, Xingguo
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2016
关键词	Rare earth hydrides Pressure-composition isotherm Phase diagram Thermodynamics ELECTRICAL-PROPERTIES STORAGE ALLOYS H SYSTEMS SM ABSORPTION DIHYDRIDE TERBIUM FILMS TB ND
DOI	10.1016/j.jallcom.2016.02.201
英文摘要	The thermodynamics of the gadolinium-hydrogen (Gd-H) binary system (H/Gd = 0.0-2.0) between 650 and 900 degrees C is studied by pressure composition isotherm measurement. Significant H dissolution in Gd is observed, up to H/Gd = 0.34 at 650 degrees C and 0.55 at 900 degrees C. The metal-rich phase boundary of non-stoichiometric gadolinium dihydride was found to occur with nominal composition of GdH1.80 at 650 degrees C and GdH1.53 at 900 degrees C. The results are in fairly good agreement with previous experimental work but with improved accuracy. The binary phase diagram is obtained using the CALPHAD method. The thermodynamic study here assists the understanding on the efficient deoxygenation effect by the H in Gd for Gd purification. (C) 2016 Elsevier B.V. All rights reserved.; MOST of China [2012CBA01207]; National Natural Science Foundation of China (NSFC) [U1201241, 11375020, 51431001, 21321001]; SCI(E); ARTICLE; wenhuaitian@ustb.edu.cn; xgli@pku.edu.cn; 131-137; 673
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438088]
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. Study on the thermodynamics of the gadolinium-hydrogen binary system (H/Gd=0.0-2.0) and implications to metallic gadolinium purification[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016.
APA	Fu, Kai.,Li, Guoling.,Li, Jigang.,Liu, Yang.,Tian, Wenhuai.,...&Li, Xingguo.(2016).Study on the thermodynamics of the gadolinium-hydrogen binary system (H/Gd=0.0-2.0) and implications to metallic gadolinium purification.JOURNAL OF ALLOYS AND COMPOUNDS.
MLA	Fu, Kai,et al."Study on the thermodynamics of the gadolinium-hydrogen binary system (H/Gd=0.0-2.0) and implications to metallic gadolinium purification".JOURNAL OF ALLOYS AND COMPOUNDS (2016).