Rare-earth hydrides and rare-earth oxides in and from thin films of rare-earth metals

Kaul & Saxena [Acta Cryst. (1977), A33, 992-996] have reported the existence of long-range and short-range order in a non-stoichiometric phase 'LnO x ' (Ln = rare earth). It is shown that the experiments they are describing are indeed the oxidation of the rare-earth hydride LnH2 into the rare-earth cubic C-type sesquioxide. The interpretation they give of their experiments is to be discarded entirely.

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Novel Reactive Anode for Electrochemical Extraction of Rare Earth Metals from Rare Earth Oxides

Rare Metal Technology 2017 - The Minerals, Metals & Materials Series ◽

10.1007/978-3-319-51085-9_9 ◽

2017 ◽

pp. 87-92

Author(s):

Aida Abbasalizadeh ◽

Seshadri Seetharaman ◽

Prakash Venkatesan ◽

Jilt Sietsma ◽

Yongxiang Yang

Keyword(s):

Rare Earth ◽

Rare Earth Metals ◽

Rare Earth Oxides ◽

Electrochemical Extraction

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Surface and bulk phenomena in the process of hydride formation in thin films of rare earth metals: Comparison between terbium and europium

Applied Surface Science ◽

10.1016/j.apsusc.2011.03.028 ◽

2011 ◽

Vol 257 (19) ◽

pp. 8241-8245 ◽

Cited By ~ 3

Author(s):

M. Knor ◽

R. Nowakowski ◽

R. Duś

Keyword(s):

Thin Films ◽

Rare Earth ◽

Rare Earth Metals ◽

Hydride Formation

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Optical properties of glasses (TeO2–GeO2–K2O) thin films co-doped with rare earth oxides Sm2O3/Yb2O3

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2009.06.016 ◽

2009 ◽

Vol 485 (1-2) ◽

pp. 519-523 ◽

Cited By ~ 11

Author(s):

M. El-Hagary ◽

M. Emam-Ismail ◽

E.R. Shaaban ◽

I. Shaltout

Keyword(s):

Thin Films ◽

Optical Properties ◽

Rare Earth ◽

Rare Earth Oxides ◽

Co Doped

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Degradation Studies on Erbium Dideuteride Thin Films

Applied Spectroscopy ◽

10.1366/0003702804730718 ◽

1980 ◽

Vol 34 (2) ◽

pp. 206-211 ◽

Cited By ~ 1

Author(s):

R. J. Antepenko ◽

D. M. Holloway

Keyword(s):

Thin Films ◽

Rare Earth ◽

Hydrogen Isotope ◽

Neutron Generator ◽

Rare Earth Metals ◽

Surface Oxidation ◽

Interfacial Interactions ◽

Neutron Tube ◽

Vacuum Anneal ◽

And Function

Rare earth metals are used as hydrogen isotope occluders and function as electrodes in neutron generator tubes. In this study, erbium dideuteride thin films have been quantitatively measured for purity in order to establish the deleterious effects resulting from film processing. These processes include deposition, hydriding, and neutron tube vacuum anneal. The data taken reveal that ∼0.02 mg/cm2 erbium metal is unavailable as the hydride due to surface oxidation and interfacial interactions between occluder metal and substrate.

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