نتایج جستجو برای: thermal plasma
تعداد نتایج: 563853 فیلتر نتایج به سال:
In the present paper, a complete literatures review of thermal barrier coating applications in diesel engines is performed to select a proper type and to find coating effects. The coating system has effects on the fuel consumption, the power and the combustion efficiency, pollution contents and the fatigue lifetime of engine components. Usually there are several beneficial influences by appl...
I discuss different models which predict changes in the mass of the thermal ρ field. I emphasize that while the predictions are strongly model dependent, nevertheless substantial shifts in the thermal ρ mass are expected to occur at the point of phase transition. As long as the thermal ρ peak does not become too broad, this should provide a striking signature of the existence of a phase transit...
Excimer laser ablation of metals starts as a thermal process in the -1-J/cm2 fluence range and makes a rapid transition near 5 J/cm2 to a highly ionized plume (for IO-ns pulses). The 1-5-J/cm2 range is of particular interest because it overlaps the irradiance range used to fabricate high-temperature superconductors, diamondlike carbon films, and conducting Cu films. Covered here are analyses ai...
Electric arc stabilized by a vortex of liquid, mostly water, is used in a special type of plasma torch for generation of thermal plasma jet with extreme plasma parameters. The paper presents analysis of properties and processes of water stabilized arcs and discusses differences from common gas stabilized arcs. Plasma torch utilizing stabilization of arc column by combination of gas flow and liq...
A thermal plasma process for the synthesis of nanoparticles and their immediate assembly into nanostructured films is discussed. In this process, known as hypersonic plasma particle deposition, a thermal plasma with injected precursors is expanded through a nozzle to nucleate nanoparticles, which are then inertially deposited onto a cooled substrate in vacuum. A lightly consolidated nanostructu...
Advances in thermal plasma torches have resulted in this technology becoming a commercially viable solution for chemical and metallurgical processes. The main advantages of plasma are its ability to control process chemistry and to build small footprint reactors due to its high energy density and reactivity of the free radicals that are produced. This paper focuses on thermal plasmas produced b...
Gasification of various hydrocarbons with help of thermal plasma is studied at the Institute of Plasma Physics (IPP). Such treatment can be way of recycling of polymer waste with production of high purity synthesis gas (syngas) mainly composed of hydrogen and CO. A plasma torch with hybrid stabilization of arc used in the reactor allows higher efficiency for gasification than other processes. T...
I outline various derivations of the non-Abelian Kubo equation, which governs the response of a quark-gluon plasma to hard thermal perturbations. In the static case, it is proven that gauge theories do not support hard thermal solitons. Explicit solutions are constructed within an SU (2) Ansatz and they are shown to support the general result. The time-dependent problem, i.e., non-Abelian plasm...
An experimental investigation was conducted to find the effect of spraying method of coating of Thermal Barrier Coatings (TBCs) on their oxidation behaviour and resistance to various thermal loading. Isothermal and thermal shock tests were performed in order to study oxidation behaviour of air plasma sprayed Bond Coat (BC) and assess its effect on TBCs lifetime under the stated loadings. Specim...
Nitride compounds are among the most important and widely used compounds in life. The high chemical, thermal and mechanical stability of nitride compounds is due to the interaction of two factors, such as very strong bonds between the elements and the existence of completely covalent structures. Triphosphorus pentanitride (P3N5) is an important nitride compound. Three structures of alpha, gamm...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید