in this paper, thermal effect of plasma arc welding is investigated, and temperature field of ferrite stainless steel is acquired. thermal effect of plasma arc and subsequently the generated temperature field in the work piece is the key for analysis and optimization of this welding process, which is the main goal of this paper. finite element simulation of welding process by simplec method and...

Plasma is the fourth state of matter and other states of matter are liquid, gas, and solid. Plasma occurs as a natural phenomenon in the universe in the form of fire, in the polar aurora borealis and in the nuclear fusion reactions of the sun and also can be created artificially which has gained importance in the fields of plasma screens or light sources. There are two types of plasma: thermal ...

Nanosized Al2O3 powder is synthesized by thermal Metal Organic Chemical Vapor Deposition (MOCVD)combined withplasma. The effects of reaction temperature, pressure, Al(CH3)3 (TMA) concentration and...

Non-thermal atmospheric pressure plasma is a novel approach for wound healing, blood coagulation, and cancer therapy. A recent discovery in the field of plasma medicine is that non-thermal atmospheric pressure plasma not only directly but also indirectly affects cells via plasma-treated liquids. This discovery has led to the use of non-thermal atmospheric pressure plasma as a novel chemotherapy...

Non-thermal plasma, also called non equilibrium arc plasma, is a kind of low temperature plasma. Thermal arc plasma is usually driven by a high power supply and characterized by a high current (several amperes to tens of amperes) and a small low voltage (tens of voltage). It is a kind of strongly self-sustaining high-temperature discharge. Unlike thermal plasma, non-thermal arc plasma is usuall...

Several silicate materials were plasma sprayed and characterized by the authors in recent years from the point of view of their chemical and phase compositions, microstructure and mechanical as well as thermal properties. Present work is concerned with selected dielectric properties of these deposits. Synthetic mullite and steatite as well as natural olivine-forsterite were plasma sprayed using...

Symmetrically designed fusion and heat concepts, space propulsion, energy conversion issues with a particular interest in kinetic analysis, plasma power balance, advanced fuels, alternative systems as new trends experiments theory, physics, engineering, very specific related areas such processes, cosmology, turbulence are important fundamental applied science from an engineering physics perspec...