Plasma coating

In Section 4.3 several recently developed and experimental surface preparation methods for steel such as conversion coatings, plasma spray and sol-gel that attempt to simultaneously improve durability and bond strength over grit blasting will be discussed. 

Experiments like those described above have been performed to evaluate sodium ion barrier properties of Hitachi PIQ and DuPont PI 2540 polyimide films. Also included in the comparison were silicon nitride coatings plasma deposited in both tensile and compressive stress modes. The structure of the samples is illustrated in Figure 9. N-type, (111) oriented silicon substrates were cleaned and oxidized in dry oxygen ambient at 1100°C to form a 1060 A Si02 film. Wafers intended for polyimide characterization were coated with an organic silane film (gamma glycidal amino propyl trimethoxysilane) to promote adhesion of the polyimide to the oxide surface. The polyimide resins were spun onto the wafers at speeds to produce final... 

Figure 8. Fluorine Is spectrum from fluorocarbon coating plasma grafted to wool...

Figure 9a. Electron spectra from flame retardant coatings plasma grafted to fabric.

P. Favia, M. Vulpio, R. Marino, R. d Agostino, R. P. Mota, and M. Catalano, Plasma-Deposition of Ag-Containing Polyethyleneoxide-Like Coatings, Plasma. Polym. 5, 1-14 (2000). 

Figure 33.6 Effect of (Ar + H2) plasma pretreatment of steel surface on the corrosion performance of E-coat/plasma polymer combined coating system (a) effect of treatment time, (b) effect of discharge power.

Figure 6.16 Laser-Raman spectra of HAp starting powder (A), plasma-sprayed HAp on top of a 20 pm thick Ti02 bond coat (B) and HAp without a bond coat plasma-sprayed onto Ti6AI4V (C). (a) Raman signal of P04 and (b) Raman signal of OH.

Research in this direction has likely been started in detail by Tkatchuk et al. [105] in the seventies. They reported the structure and propaties of organotin polymer films and proposed their application as insulating layers on microelectronic devices, as intermediate adhesive layers, and as protective coatings. Plasma polymerization of tetramethyltin has been further studied by a number of researchers [106-110], with... 

Organic coatings are applied by painting, powder coating. E-coating, plasma polymerization, and sol-gel coating [50]. The first step in painting is the selection of the primer. ASTM standards for chemical analysis of paints and paint materials are summarized in Table 13.2. 

Favia P, Vnlpio M, Marino R, DAgostino R, Pinto Mota, R and Catalano M. Plasma deposition of Ag-containing polyethyleneoxide-like coatings , Plasmas and Polymers, 5,2000, pp 1-14. 

Bordeaux, F., et al.. Thermal Shock Resistance of TiC Coatings Plasma-Sprayed onto Macroroughened Substrates, Surface and Coating Technology, 53 49-56 (1992)... 

Hybrid organic/inorganic coatings—plasma electrolytic 2.60 5... 

As protective and modifying coatings plasma polymerizations have been suggested for use as laser window coatings, adhesion improvers for polymer fillers, and bonding applications. Plasma polymerization has also been used to surface treat fibres - and films and to chemically modify electrodes. Traditionally, plasma-polymerization coatings have been attractive as membranes, and applications along these lines have been pursued for the preparation of reverse osmosis membranes for water treatment. - ... 

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