Results 1 to 10 of about 42,628 (263)

Effect of hydrogen peroxide concentration on plasma arc-activated tooth bleaching: An in vitro study [PDF]

open access: yesJournal of Dental Sciences
Background/purpose: Tooth bleaching was a conservative treatment compared with veneer and crown restorations that causes damage of teeth structure. This study evaluated the effectiveness of different concentrations of hydrogen peroxide combined with ...
Pei-Ling Lai   +5 more
doaj   +2 more sources

Effect of External Magnetic Field on Long DC Arc Characteristics with Rng-shaped Anode [PDF]

open access: yesMATEC Web of Conferences, 2021
Fluctuation phenomena of plasma jet flow in an innovative long DC arc system with a ring-shaped anode were successfully clarified by a high-speed camera visualization.
Hashizawa Akio   +3 more
doaj   +1 more source

Arc Plasma Flow Variation by Obstruction Structures between Anode and Cathode

open access: yesMetals, 2021
Arc plasma flow between electrodes has been investigated in several studies. However, in the industrial field, arc plasma flow between electrodes is hindered by interfering materials such as filler metal in arc welding, substrates in chemical vapor ...
Young-Tae Cho   +4 more
doaj   +1 more source

Research on the Energy Characteristics of a Transferred Arc Plasma-Chemical Reactor for Waste Treatment

open access: yesApplied Sciences, 2023
This study has been performed to reveal the main characteristics of operating a direct current (DC) plasma-chemical reactor (PChR) designed for hazardous waste treatment. The PChR employs thermal plasma as the operating environment.
Rolandas Uscila   +5 more
doaj   +1 more source

Arc Plasma Torch Modeling [PDF]

open access: yesJournal of Thermal Spray Technology, 2009
Arc plasma torches are the primary components of various industrial thermal plasma processes involving plasma spraying, metal cutting and welding, thermal plasma CVD, metal melting and remelting, waste treatment and gas production. They are relatively simple devices whose operation implies intricate thermal, chemical, electrical, and fluid dynamics ...
Trelles, J.P.   +3 more
openaire   +3 more sources

A Computational Magnetohydrodynamic Modelling Study on Plasma Arc Behaviour in Gasification Applications

open access: yesMathematical and Computational Applications, 2023
The application of direct-current plasma arc furnace technology to the problem of coal gasification is investigated using computational multiphysics models of the plasma arc inside such units.
Quinn G. Reynolds   +2 more
doaj   +1 more source

Review on the Research Progress of Arc Plasma Power Sources in China

open access: yesIEEE Access, 2023
Arc plasma, characterized by its high current density, high energy concentration, and elevated gas enthalpy, is widely utilized in fields such as metallurgy, chemical industry, energy and environmental protection, as well as aerospace.
Yong Jin   +3 more
doaj   +1 more source

Numerical Simulation of Intermediate-Frequency Vacuum Arc

open access: yesIEEE Access, 2020
With the development of more/all electric aircraft technology, variable frequency (360-800 Hz) power systems have become an important development focus for future aircraft design.
Ziang Tong, Jianwen Wu, Kui Li
doaj   +1 more source

Modeling of arc in convective shock wave composite system and analysis of its plasma running characteristics

open access: yesAIP Advances, 2021
The plasma arc caused by lightning overvoltage can significantly degrade the power grid reliability. Thus, it is essential to design an efficient arc extinguishing system.
Ping Huang   +5 more
doaj   +1 more source

Ti–6Al–4V alloy deposition characteristics at electrode-negative polarity in the cold metal transfer–gas metal arc process

open access: yesJournal of Materials Research and Technology, 2022
Although wire arc additive manufacturing (WAAM) of Ti alloys using gas metal arc yields a high deposition rate, cathode spots exhibit unstable behavior.
Tae Hyun Lee   +3 more
doaj   +1 more source

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