Studies of the products from the reactions of co-acids containing concentrated HF and dilute HNO3 with Zircaloy-4

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	Studies of the products from the reactions of co-acids containing concentrated HF and dilute HNO3 with Zircaloy-4
	H. F. Gu; L. F. Zhang; M. Y. Li; L. Wang; X. N. Li; S. Q. Wu; S. Peng; B. Gao; G. P. Li
	2014
发表期刊	Journal of Fluorine Chemistry
ISSN	0022-1139
卷号	166 页码:28-33
摘要	The pickling of Zircaloy with HF-HNO3 solution as an important surface treatment has been widely used in the nuclear materials industry. However, a thorough knowledge of the products from the reactions of HF-HNO3 system with Zircaloy still needs to be well established. In the present study, the acid solution containing HF (40 wt.%) and HNO3 (65 wt.%) with four volume ratios, 100:0, 94:6, 89:11 and 80:20, was employed and it reacted with Zircaloy-4 violently with gas releasing at an air pressure oil 1 bar, a relative humidity of 30 +/- 5% and a temperature of 25 degrees C. Meanwhile, white products formed within minutes. These products were identified by using X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The usage of the concentrated HF solution leads to the formation of crystalline ZrF4(H2O), while the usage of co-acids containing concentrated HF and dilute HNO3 results in the formation of crystalline ZrF4(H2O) and NH4ZrF5. In addition, with decreasing the volume fraction of HF and increasing that of HNO3 in the co-acid used, the weight fraction of crystalline ZrF4(H2O) decreases while that of crystalline NH4ZrF5 increases in the products obtained. (C) 2014 Elsevier B.V. All rights reserved.
部门归属	[gu, h. f. ; zhang, l. f. ; li, m. y. ; wu, s. q. ; li, g. p.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [gu, h. f. ; zhang, l. f. ; li, m. y. ; wu, s. q.] univ chinese acad sci, beijing 100049, peoples r china. [wang, l. ; li, x. n. ; peng, s. ; gao, b.] state nucl baoti zirconium ind co, baoji 721003, peoples r china. ; li, gp (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; gpli@imr.ac.cn
关键词	Zircaloy-4 Hydrofluoric Acid And Nitric Acid Solution Aquatetrafluorozirconium Ammonium Pentafluorozirconate Glasses Fluoride
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73231
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. F. Gu,L. F. Zhang,M. Y. Li,et al. Studies of the products from the reactions of co-acids containing concentrated HF and dilute HNO3 with Zircaloy-4[J]. Journal of Fluorine Chemistry,2014,166:28-33.
APA	H. F. Gu.,L. F. Zhang.,M. Y. Li.,L. Wang.,X. N. Li.,...&G. P. Li.(2014).Studies of the products from the reactions of co-acids containing concentrated HF and dilute HNO3 with Zircaloy-4.Journal of Fluorine Chemistry,166,28-33.
MLA	H. F. Gu,et al."Studies of the products from the reactions of co-acids containing concentrated HF and dilute HNO3 with Zircaloy-4".Journal of Fluorine Chemistry 166(2014):28-33.