Deposition profile of Ti film inside a trench and its correlation with gas-phase ionization in high-pressure magnetron sputtering

2006 ◽  
Vol 24 (6) ◽  
pp. 2206-2211 ◽  
Author(s):  
N. Nafarizal ◽  
N. Takada ◽  
K. Nakamura ◽  
Y. Sago ◽  
K. Sasaki
Keyword(s):  
High Pressure ◽  
Magnetron Sputtering ◽  
Gas Phase

High-pressure magnetron sputtering: Gas-phase processes

1998 ◽  
Vol 43 (7) ◽  
pp. 766-773 ◽  
Author(s):  
A. G. Znamenskii ◽  
V. A. Marchenko
Keyword(s):  
High Pressure ◽  
Magnetron Sputtering ◽  
Gas Phase

scholarly journals Tuning the coalescence degree in the growth of Pt-Pd nanoalloys

2020 ◽  
Author(s):  
Diana Nelli ◽  
Manuella Cerbelaud ◽  
Riccardo Ferrando ◽  
Chloé Minnai
Keyword(s):  
Magnetron Sputtering ◽  
Gas Phase

Coalescence is a phenomenon in which two or more nanoparticles merge to form a single larger aggregate. By means of gas-phase magnetron-sputtering aggregation experiments on Pt-Pd nanoalloys, it is shown...

Gas-phase clusterization of zinc during magnetron sputtering

2017 ◽  
Vol 62 (1) ◽  
pp. 133-138 ◽  
Author(s):  
A. Kh. Abduev ◽  
A. K. Akhmedov ◽  
A. Sh. Asvarov ◽  
N. M. -R. Alikhanov ◽  
R. M. Emirov ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Gas Phase

The gas phase reactivity of the dimethylchloronium ion with alkylbenzenes

1981 ◽  
Vol 59 (15) ◽  
pp. 2412-2416 ◽  
Author(s):  
John A. Stone ◽  
Margaret S. Lin ◽  
Jeffrey Varah
Keyword(s):  
High Pressure ◽  
Gas Phase ◽  
Mass Spectrometer ◽  
Aromatic Hydrocarbons ◽  
Relative Rate ◽  
Ion Source ◽  
Nucleophilic Displacement ◽  
Rate Of Reaction ◽  
Displacement Reactions ◽  
Bonded Complexes

The reactivity of the dimethylchloronium ion with a series of aromatic hydrocarbons has been studied in a high pressure mass spectrometer ion source using the technique of reactant ion monitoring. Benzene is unreactive but all others, from toluene to mesitylene, react by CH3+ transfer to yield σ-bonded complexes. The relative rate of reaction increases with increasing exothermicity in line with current theories of nucleophilic displacement reactions.

Numerical Study of Bicomponent Droplet Vaporization in a High Pressure Environment

1996 ◽  
Author(s):  
J. Stengele ◽  
H.-J. Bauer ◽  
S. Wittig
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Gas Phase ◽  
Numerical Study ◽  
Droplet Evaporation ◽  
Single Component ◽  
Vapor Concentration ◽  
Diffusion Limit ◽  
Evaporation Process ◽  
Droplet Vaporization

The understanding of multicomponent droplet evaporation in a high pressure and high temperature gas is of great importance for the design of modern gas turbine combustors, since the different volatilities of the droplet components affect strongly the vapor concentration and, therefore, the ignition and combustion process in the gas phase. Plenty of experimental and numerical research is already done to understand the droplet evaporation process. Until now, most numerical studies were carried out for single component droplets, but there is still lack of knowledge concerning evaporation of multicomponent droplets under supercritical pressures. In the study presented, the Diffusion Limit Model is applied to predict bicomponent droplet vaporization. The calculations are carried out for a stagnant droplet consisting of heptane and dodecane evaporating in a stagnant high pressure and high temperature nitrogen environment. Different temperature and pressure levels are analyzed in order to characterize their influence on the vaporization behavior. The model employed is fully transient in the liquid and the gas phase. It accounts for real gas effects, ambient gas solubility in the liquid phase, high pressure phase equilibrium and variable properties in the droplet and surrounding gas. It is found that for high gas temperatures (T = 2000 K) the evaporation time of the bicomponent droplet decreases with higher pressures, whereas for moderate gas temperatures (T = 800 K) the lifetime of the droplet first increases and then decreases when elevating the pressure. This is comparable to numerical results conducted with single component droplets. Generally, the droplet temperature increases with higher pressures reaching finally the critical mixture temperature of the fuel components. The numerical study shows also that the same tendencies of vapor concentration at the droplet surface and vapor mass flow are observed for different pressures. Additionally, there is almost no influence of the ambient pressure on fuel composition inside the droplet during the evaporation process.

Anomalous Hall Effect of the Co Thin Film Deposited by High-Pressure Magnetron Sputtering

2015 ◽  
Vol 1120-1121 ◽  
pp. 424-428
Author(s):  
C.Y. Zou ◽  
Lai Sen Wang ◽  
Xiang Liu ◽  
Q.F. Zhang ◽  
Jun Bao Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
High Pressure ◽  
Magnetron Sputtering ◽  
Hall Effect ◽  
Weak Localization ◽  
Anomalous Hall Effect ◽  
Scaling Relation ◽  
Strong Disorder ◽  
Region Temperature ◽  
Localization Region

In this paper, we studied the dependence of temperature and weak localization (WL) effect on the anomalous Hall effect (AHE) in strong disordered and poorly crystallized metal Co thin film deposited by high-pressure magnetron sputtering. The temperature coefficients of resistivity is positive at high temperatures and becomes negative at low temperatures, which is the typical characteristic of weak localization effect in dirty metal regime due to the strong disorder. The saturation anomalous Hall resistivity (ρAxy) have no scaling relation between ρxy and ρxx in weak localization region with temperature below 50 K. In metal region, temperature ranged from 50 K to 300 K, the relation between ρAxy and ρxxis ρAxy=A+bρ2xx, which indicates that the AHE in this Co thin film is scattering-independence at high temperature. The results also shows that the WL effect have a significant impact on the AHE of the Co thin film at low temperature.

Gas-phase thermometry in a high-pressure cell using BaMgAl10O17:Eu as a thermographic phosphor

2013 ◽  
Vol 111 (3) ◽  
pp. 469-481 ◽  
Author(s):  
J. P. J. van Lipzig ◽  
M. Yu ◽  
N. J. Dam ◽  
C. C. M. Luijten ◽  
L. P. H. de Goey
Keyword(s):  
High Pressure ◽  
Gas Phase ◽  
High Pressure Cell ◽  
Pressure Cell ◽  
Thermographic Phosphor

Artificial Photosynthesis - Use of a Ferroelectric Photocatalyst

2012 ◽  
Vol 1446 ◽  
Author(s):  
Steve Dunn ◽  
Matt Stock
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Titanium Dioxide ◽  
Lithium Niobate ◽  
Gas Phase ◽  
Remnant Polarization ◽  
Artificial Photosynthesis ◽  
Reaction Pathway ◽  
Mercury Lamp ◽  
Low Levels

ABSTRACTThe solid-gas phase photoassisted reduction of carbon dioxide (artificial photosynthesis) was performed using ferroelectric lithium niobate and titanium dioxide as photocatalysts. Illumination with a high pressure mercury lamp and visible sunlight showed lithium niobate achieved unexpectedly high conversion of CO2 to products despite the low levels of band gap light available and outperformed titanium dioxide under the conditions used. The high reaction efficiency of lithium niobate is explained due to its strong remnant polarization (70 μC/cm2) thought to allow longer lifetime of photo induced carriers as well as an alternative reaction pathway.

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