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  2. Plasma transferred wire arc thermal spraying - Wikipedia

    en.wikipedia.org/wiki/Plasma_transferred_wire...

    Plasma transferred wire arc (PTWA) thermal spraying is a thermal spraying process that deposits a coating on the internal surface of a cylindrical surface, or external surface of any geometry. It is predominantly known for its use in coating the cylinder bores of an internal combustion engine , enabling the construction of aluminium engine ...

  3. Thermal spraying - Wikipedia

    en.wikipedia.org/wiki/Thermal_spraying

    The "feedstock" (coating precursor) is heated by electrical (plasma or arc) or chemical means (combustion flame). Thermal spraying can provide thick coatings (approx. thickness range is 20 microns to several mm, depending on the process and feedstock), over a large area at high deposition rate as compared to other coating processes such as ...

  4. Plasma activation - Wikipedia

    en.wikipedia.org/wiki/Plasma_activation

    Plasma activation (or plasma functionalization) is a method of surface modification employing plasma processing, which improves surface adhesion properties of many materials including metals, glass, ceramics, a broad range of polymers and textiles and even natural materials such as wood and seeds. Plasma functionalization also refers to the ...

  5. Surface treatment of PTFE - Wikipedia

    en.wikipedia.org/wiki/Surface_treatment_of_PTFE

    Various gases may be used to generate the plasma. Like chemical etching, plasma etching also defluorinates the PTFE, though not to the same degree. F/C ratios drop from 2.0 to 1.4 with an argon plasma, and to 1.8 with an oxygen plasma, [6] and to 0.7-0.8 with an ammonia or hydrogen plasma. [8] [10]

  6. Plasma gasification - Wikipedia

    en.wikipedia.org/wiki/Plasma_gasification

    Plasma gasification is an extreme thermal process using plasma which converts organic matter into a syngas (synthesis gas) which is primarily made up of hydrogen and carbon monoxide. A plasma torch powered by an electric arc is used to ionize gas and catalyze organic matter into syngas , with slag [ 1 ] [ 2 ] [ 3 ] remaining as a byproduct.

  7. Plasma-enhanced chemical vapor deposition - Wikipedia

    en.wikipedia.org/wiki/Plasma-enhanced_chemical...

    Plasma-enhanced chemical vapor deposition (PECVD) is a chemical vapor deposition process used to deposit thin films from a gas state to a solid state on a substrate. Chemical reactions are involved in the process, which occur after creation of a plasma of the reacting gases.

  8. Plasma processing - Wikipedia

    en.wikipedia.org/wiki/Plasma_processing

    Plasma processing is a plasma-based material processing technology that aims at modifying the chemical and physical properties of a surface. [1] Plasma processing techniques include: Plasma activation; Plasma ashing; Plasma cleaning; Plasma electrolytic oxidation; Plasma etching; Plasma functionalization; Plasma polymerization; Corona treatment ...

  9. Suspension plasma spray - Wikipedia

    en.wikipedia.org/wiki/Suspension_plasma_spray

    In materials engineering, suspension plasma spray (SPS) is a form of plasma spraying where the ceramic feedstock is dispersed in a liquid suspension before being injected into the plasma jet. [ 1 ] [ 2 ]

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