Results 91 to 100 of about 1,031,082 (303)

A Fiber Optic Catalytic Sensor for Neutral Atom Measurements in Oxygen Plasma

open access: yesSensors, 2012
The presented sensor for neutral oxygen atom measurement in oxygen plasma is a catalytic probe which uses fiber optics and infrared detection system to measure the gray body radiation of the catalyst.
Alenka Vesel   +2 more
doaj   +1 more source

Comparative studies of air-plasma and oxygen-plasma cutting

open access: yesIzvestiya MGTU MAMI, 2014
Peculiarities of plasma cutting, its advantages and disadvantages are considered. There are considered technical capabilities used plasma installation and analyzed the results of the conducted research.
A. N Vasiliev   +3 more
openaire   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

AlGaN/GaN MIS-HEMTs With High Quality ALD-Al2O3 Gate Dielectric Using Water and Remote Oxygen Plasma As Oxidants

open access: yesIEEE Journal of the Electron Devices Society, 2018
We demonstrate the electrical performances of AlGaN/GaN metal-insulator-semiconductor-high electron mobility transistors (MIS-HEMTs) with high quality Al2O3 gate dielectric deposited by plasma enhanced atomic layer deposition using both H2O and remote O2
Huan-Chung Wang   +8 more
doaj   +1 more source

Multilayered Al/CuO thermite formation by reactive magnetron sputtering: Nano versus micro [PDF]

open access: yes, 2010
Multilayered Al/CuO thermite was deposited by a dc reactive magnetron sputtering method. Pure Al and Cu targets were used in argon–oxygen gas mixture plasma and with an oxygen partial pressure of 0.13 Pa. The process was designed to produce low stress (
Alphonse, Pierre   +7 more
core   +2 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Dry Bio-Decontamination Process in Reduced-Pressure O2 Plasma

open access: yesApplied Sciences, 2019
The main objective of this work was to fully understand the bio-decontamination process in a reduced-pressure oxygen plasma. Gram-negative Escherichia coli species was chosen as the target microorganism in this test.
Hongxia Liu   +4 more
doaj   +1 more source

Strong Photoluminescence Enhancement of MoS2 through Defect Engineering and Oxygen Bonding

open access: yes, 2014
We report on a strong photoluminescence (PL) enhancement of monolayer MoS2 through defect engineering and oxygen bonding. Micro- PL and Raman images clearly reveal that the PL enhancement occurs at cracks/defects formed during high temperature vacuum ...
Chen, Qian   +11 more
core   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

Radio-frequency discharges in Oxygen. Part 1: Modeling

open access: yes, 2007
In this series of three papers we present results from a combined experimental and theoretical effort to quantitatively describe capacitively coupled radio-frequency discharges in oxygen.
Akhmanov S A   +43 more
core   +1 more source

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