Computer Simulation of Sputtering from Two Component Liquid Metal Targets

1985 ◽  
Vol 63 ◽  
Author(s):  
M. H. Shapiro ◽  
D. Y. Lo ◽  
T. A. Tombrello
Keyword(s):  
Experimental Data ◽  
Angular Distributions ◽  
Good Qualitative Agreement ◽  
Energy Distributions ◽  
Pure Indium ◽  
Two Component ◽  
Similar Information ◽  
Indium Target ◽  
Multiple Interaction ◽  
Detailed Nature

ABSTRACTThe sputtering of In and Ga atoms from a “liquid” target composedof gallium coveredby a surface monolayer of indium by incident 5 keV Ar+ ions was simulated using the multiple interaction molecular dynamics technique. Yields, energy distributions, and angular distributions of sputtered atoms were obtained at a temperature above the melting point for the eutectic alloy. Similar information was obtained for a pure gallium and a pure indium target. Our results for layer yield ratios and angular distributions are in good qualitative agreement with Dumke's experimental data for the Ar+, In-Ga system. Absolute yields, however, were found to be sensitive to the detailed nature of the two-body potentials used to describe the atom-atom interactions.

Simulation Studies of Collision Cascades in Liquid in Targets

1986 ◽  
Vol 74 ◽  
Author(s):  
D. Y. Loi ◽  
M. H. Shapiro ◽  
T. A. Tombrello ◽  
B. J. Garrison ◽  
N. Winograd
Keyword(s):  
Experimental Data ◽  
Surface Layer ◽  
Angular Distribution ◽  
Lower Energy ◽  
Atomic Layer ◽  
Angular Distributions ◽  
Recent Experimental Data ◽  
Simulation Studies ◽  
Detailed Structure ◽  
Multiple Interaction

AbstractMultiple interaction computer simulations have been used to determine the properties of collision cascades in liquid In targets induced by normally incident 5 keV Ar+ ions. Below the first atomic layer the cascade becomes Thompson-like relatively quickly. However, within the first atomic layer the angular distribution of moving atoms became forward peaked by 150 fs and remained so until,∼300 fs. Energy and angle resolved (EARN) spectra were calculated for the ejected atoms. The peak of the energy distribution shifted to lower energies at larger ejection angles, and the angular distributions became broader for lower energy particles. Both results agree with recent experimental data, and with a simple model proposed bg Garrison. Our results suggest that the detailed structure of the surface layer is very important in the sputtering process.

SYSTEMATIC COMPARISON OF THE EXPERIMENTAL DATA WITH THE FRITIOF MODEL IN NUCLEUS–NUCLEUS INTERACTIONS WITH LIGHT AND HEAVY TARGET NUCLEI IN NUCLEAR EMULSION AT 4.5A Gev/c

2002 ◽  
Vol 11 (02) ◽  
pp. 161-175 ◽  
Author(s):  
M. MOHERY ◽  
N. N. ABD-ALLAH
Keyword(s):  
Experimental Data ◽  
Nuclear Emulsion ◽  
Multiplicity Distribution ◽  
Angular Distributions ◽  
Target Groups ◽  
Systematic Comparison ◽  
Secondary Particles ◽  
Heavy Target ◽  
Light Target ◽  
Fritiof Model

The characteristics of the interactions of 4.5 A GeV/c 28 Si nuclei with emulsion have been investigated. The method of separating interactions into those with hydrogen, light and heavy target nuclei has been discussed. The multiplicity distribution, average multiplicities, multiplicity correlation and the angular distributions of the secondary particles emitted in 28 Si -emulsion are calculated according to the Modified Fritiof Model and compared with the experimental data and with other available data for p, 12 C , 24 Mg at the same energy. It has been found that the modified Fritiof model can describe the multiplicity characteristics of the different emitted particles in the above-mentioned interaction with different target groups. The comparison of the experimental data with the modified Fritiof model shows no clear preference for the case of the light target while it seems to be nearer to the experimental data in the case of the heavy target and the emulsion

scholarly journals Description of Isotherms of Two-Component Non-Electrolyte Solution Adsorption onto Solids with Structural Heterogeneity of Adsorbents Taken into Consideration

1988 ◽  
Vol 5 (2) ◽  
pp. 106-115 ◽  
Author(s):  
P. Cysewski ◽  
J.K. Garbacz ◽  
S. Biniak ◽  
A. Swiatkowski ◽  
A. Dabrowski
Keyword(s):  
Experimental Data ◽  
Electrolyte Solution ◽  
Structural Heterogeneity ◽  
Liquid Mixtures ◽  
Two Component ◽  
Solid Adsorbents

The concepts of Stoeckli as well as those of Wojsz and Rozwadowski have been adopted for describing adsorption from two-component non-electrolyte liquid mixtures at solid adsorbents taking into account structural heterogeneity of the adsorbent. Some new global adsorption equations have been obtained and verified on the basis of experimental data.

Modeling of Martensite Accommodation Effect on Mechanical Behavior of Shape Memory Alloys

1999 ◽  
Vol 121 (1) ◽  
pp. 102-104 ◽  
Author(s):  
M. E. Evard ◽  
A. E. Volkov
Keyword(s):  
Experimental Data ◽  
Plastic Deformation ◽  
Shape Memory Alloys ◽  
Mechanical Behavior ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Qualitative Agreement ◽  
Strain Accumulation ◽  
Good Qualitative Agreement

An approach has been presented to account for micro-plastic deformation and stress produced by accommodation of martensite. This has made it possible to describe such phenomena as incomplete recovery of strain, strain accumulation at thermocycling, and repeated two-way shape memory effect. Results of modeling are in good qualitative agreement with experimental data.

THE PHOTOPROTONS EMITTED FROM OXYGEN-16 NUCLEI

1956 ◽  
Vol 34 (10) ◽  
pp. 1022-1032 ◽  
Author(s):  
D. L. Livesey
Keyword(s):  
Excitation Function ◽  
Interference Effect ◽  
Proton Energy ◽  
Photographic Plate ◽  
Electric Quadrupole ◽  
High Energy ◽  
Angular Distributions ◽  
Energy Distributions ◽  
Plate Method ◽  
Oxygen Gas

The photographic plate method has been used to study photoprotons emitted from oxygen gas exposed to bremsstrahlung of maximum energies 30, 35, and 70 Mev. The proton energy distributions above 5 Mev. show maxima corresponding to peaks in the (γ, p) excitation function at 20.7, 21.9, and 24.0 Mev. The proton angular distributions are anisotropic, in general agreement with a sin2θ function, but the high-energy protons exhibit a degree of asymmetry about the 90° angle which may be due to a small electric-quadrupole interference effect.

scholarly journals Measurement and prediction of binary mixture flash point

2013 ◽  
Vol 11 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Mariana Hristova
Keyword(s):  
Experimental Data ◽  
Binary Mixture ◽  
Binary Mixtures ◽  
Qualitative Agreement ◽  
Flash Point ◽  
Wilson Equation ◽  
Good Qualitative Agreement ◽  
Raoult’S Law ◽  
Raoult's Law

AbstractThe flash points of three binary mixtures, containing n-heptane, o-xylene, m-xylene and ethylbenzene, were measured by Pensky-Martens closed cup tester. The experimental data were compared with the calculated values using Liaw’s Model with the application of Raoult’s Law and Wilson equation. These equations were in good qualitative agreement.

On the Characteristics of the Pseudogapped Metallic State of High-Tc Superconductors

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3052-3056 ◽  
Author(s):  
Liyuan Zhang ◽  
Xiaoqiang Yang ◽  
Changfeng Chen
Keyword(s):  
Experimental Data ◽  
State Physics ◽  
Solid State ◽  
Theoretical Calculations ◽  
Model Description ◽  
Metallic State ◽  
High Tc Superconductors ◽  
Solid State Physics ◽  
High Tc ◽  
Two Component

The pseudogapped metallic state (PS) in high-T c superconductors (HTS) has distinctive characteristics in comparison with the metallic state in tranditional solid state physics. Through careful analyses of experimental data and theoretical calculations, we have correlated the pseudogap in the density of states with the two-component characteristics in the HTS. We propose seven points as a model description for PS.

scholarly journals Theoretical Modeling of Magnetocaloric Effect in Heusler Ni-Mn-In Alloy by Monte Carlo Study

2009 ◽  
Vol 635 ◽  
pp. 137-142 ◽  
Author(s):  
Vasiliy D. Buchelnikov ◽  
V.V. Sokolovskiy ◽  
Sergey Taskaev ◽  
Peter Entel
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Monte Carlo ◽  
Monte Carlo Study ◽  
Field Variation ◽  
Magnetic Field Variation ◽  
Magnetic Entropy ◽  
Good Qualitative Agreement ◽  
Proposed Model ◽  
Temperature Dependences

In this paper we present a theoretical model for calculation of the (positive and negative) magnetocaloric effects and magnetic properties of the Heusler Ni50Mn34In16 alloy by the classical Monte Carlo study. By the help of the proposed model the temperature dependences of the magnetization, tetragonal deformation, heat capacity, positive and negative isothermal magnetic entropy changes for magnetic field variation are obtained. All quantities are in good qualitative agreement with the available experimental data.

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