The Scattering of Lithium Ions by a Polycrystalline Nickel Surface

1934 ◽  
Vol 46 (5) ◽  
pp. 407-410 ◽  
Author(s):  
Andrew Longacre
Keyword(s):  
Nickel Surface ◽  
Polycrystalline Nickel ◽  
Lithium Ions

Spatial and speed distributions of H2 and D2 desorbed from a polycrystalline nickel surface

1971 ◽  
Vol 26 (2) ◽  
pp. 522-544 ◽  
Author(s):  
A.E. Dabiri ◽  
T.J. Lee ◽  
R.E. Stickney
Keyword(s):  
Nickel Surface ◽  
Polycrystalline Nickel

Hvem and Internal Oxidation Studies of Lithiated Nickel

1983 ◽  
Vol 27 ◽  
Author(s):  
K. Seshan ◽  
P. Baldo ◽  
H. Wiedersich
Keyword(s):  
Electron Microscopy ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Pure Nickel ◽  
High Dose ◽  
Polycrystalline Nickel ◽  
Lithium Ions ◽  
Helium Bubbles ◽  
Implantation Damage ◽  
The Difference

ABSTRACTPure, polycrystalline nickel samples were implanted with lithium to doses up to 5 × 1017 lithium ions per square centimeter, at a temperature of 500°C, such that the implantation damage would anneal. These samples were then prepared for electron microscopy and examined at 1 MeV, in the Argonne National Laboratory HVEM facility. It was observed that compared to pure nickel, the lithium implanted nickel showed a different radiation damage behaviour. A plausible explanation for the difference in behaviour is presented in this paper.The lithium implanted nickel, in the high dose samples, also showed an unusual form of precipitation. Electron microscopy revealed the precipitates to have truncated octahedral shapes with {111} planes for sides and {100} planes truncating the corners. They resemble voids and helium bubbles in nickel. The precipitates appear to be associated with dislocations. The lithium implanted nickel was internally oxidized in order to obtain evidence for the presence of lithium. Electron diffraction analysis of the internally oxidized lithiated nickel showed the presence of a topo-taxial compound being formed, with an ordered NaCl-structure. Possible interpretations of this diffraction pattern are discussed.

Origin of fine structure in the Auger spectrum of sulphur on a nickel surface

1972 ◽  
Vol 331 (1586) ◽  
pp. 403-415 ◽  
Keyword(s):  
Fine Structure ◽  
Auger Spectrum ◽  
Oxygen Adsorption ◽  
High Energy ◽  
Nickel Surface ◽  
Derivative Spectrum ◽  
Polycrystalline Nickel ◽  
Gaussian Form ◽  
Graphical Integration ◽  
Effect Of Oxygen

Additional peaks in the derivative spectrum of sulphur contaminant on a polycrystalline nickel surface have been resolved more readily with a cylindrical mirror analyser than with the retarding field analyser. The peaks appear on the high-energy side of the main sulphur peak at 150 eV. Consecutive Auger spectroscopic and X. p. s. measurements made on the nickel surface without removing it to the atmosphere have established that the fine structure is not due to any chemical shift of the sulphur L 2,3 level. Reaction with oxygen by exposure to the residual gas, and by deliberate oxidation showed that the main sulphur Auger peak decreased progressively in amplitude, although the smaller additional peaks appeared to remain constant. Graphical integration of the region around the sulphur peak, followed by the fitting of curves of Gaussian form, revealed the presence of three peaks on the sulphur-covered surface, at 148.5, 153.8, and 157.3 eV. On calculation of quantities proportional to the areas under the two larger peaks, it was found that the current in the principal peak remained almost constant, contrary to the interpretation based on the derivative spectrum amplitudes. The i. n. s. results of Becker & Hagstrum on sulphur- and oxygen-covered low-index faces of nickel are used to identify the peaks in the sulphur Auger spectrum as originating in transitions involving electrons in surface molecular orbitals formed by chemisorption. The effect of oxygen adsorption on the sulphur Auger peaks can be interpreted in the same way.

Symmetric and asymmetric dissociation of scattered from a polycrystalline nickel surface at 1 keV/u

Vacuum ◽  
2010 ◽  
Vol 84 (8) ◽  
pp. 1008-1010
Author(s):  
M. Hamhami ◽  
N. Djouhri ◽  
M. Richard-Viard ◽  
M. Boudjema
Keyword(s):  
Nickel Surface ◽  
Polycrystalline Nickel

Macroscopic Single-Domain Graphene Growth on Polycrystalline Nickel Surface

2012 ◽  
Vol 5 (3) ◽  
pp. 035501 ◽  
Author(s):  
Genki Odahara ◽  
Hiroki Hibino ◽  
Nanao Nakayama ◽  
Tomoyuki Shimbata ◽  
Chuhei Oshima ◽  
...  
Keyword(s):  
Single Domain ◽  
Nickel Surface ◽  
Polycrystalline Nickel ◽  
Graphene Growth
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