Purification of terbium by means of argon and hydrogen plasma arc   melting

doi:10.1016/j.jallcom.2015.10.180

CORC > 北京大学 > 化学与分子工程学院

	Purification of terbium by means of argon and hydrogen plasma arc melting
	Li, Guoling ; Guo, Heng ; Li, Li ; Wang, Chongyun ; Zheng, Jie ; Tian, Wenhuai ; Li, Heping ; Li, Xingguo
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2016
关键词	Rare earth alloys and compounds Plasma arc melting Purification of terbium Computer simulations TB THERMODYNAMICS IMPURITIES KINETICS REMOVAL METAL GD
DOI	10.1016/j.jallcom.2015.10.180
英文摘要	The refining of terbium (Tb) by plasma arc melting using pure Ar and Ar + H-2 mixture was examined, respectively. The temperature distribution and gas flow of the plasma arc during the melting process were simulated. The residual metallic impurities were examined by inductively coupled plasma-atomic emission spectrometer. Experimental results show that both methods of argon plasma arc melting (APAM) and hydrogen-argon plasma arc melting (HAPAM) can lead to a good removal of metallic impurities despite of high initial concentrations. HAPAM displays a better refining effect of Tb metal. Activated hydrogen atoms dissociated in high temperature plasma arc, bringing on special chemical interactions, are supposed to be the cause for the wonderful refining effect. The detailed behaviors of impurities and hydrogen atoms are discussed systematically in this study. (C) 2015 Elsevier B.V. All rights reserved.; SCI(E); EI; ARTICLE; liheping@mail.tsinghua.edu.cn; xgli@pku.edu.cn; 1-7; 659
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437657]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Li, Guoling,Guo, Heng,Li, Li,et al. Purification of terbium by means of argon and hydrogen plasma arc melting[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016.
APA	Li, Guoling.,Guo, Heng.,Li, Li.,Wang, Chongyun.,Zheng, Jie.,...&Li, Xingguo.(2016).Purification of terbium by means of argon and hydrogen plasma arc melting.JOURNAL OF ALLOYS AND COMPOUNDS.
MLA	Li, Guoling,et al."Purification of terbium by means of argon and hydrogen plasma arc melting".JOURNAL OF ALLOYS AND COMPOUNDS (2016).