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Glossary: O

Here you are going to find explications of important terms in plasma technology:

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OAUGDP
Abbreviation for „One Atmosphere Uniform Glow Discharge Plasma“, thus a homogeneous glow discharge plasma at normal pressure.
optical coatings
Coating for the improvement of optical properties of glass, like e.g. index of refraction, IR absorption and reflection. The most common layer materials are the oxides of vanadium, aluminium, titan, tantalum, silicon, and siliconoxynitride. These can be applied as either single- or multilayer, or multiphase coatings, normally via plasma-supported PVD or CVD methods.
o-ring coating
see „coating of plastics“ / “pre-treatment of plastics“
overetching
Too long or too intense plasma etching and treatment, resulting in partial decomposition or suboptimal adhesion of the substrate material.
overtreatment
Too high plasma doses (thermal plasma effect) can yield melting of the surface. A new surface with the original surface properties is generated. In other cases, the surface can be decomposed thermally as well.
oxidation
Part of a reaction during which electrons are yielded, thus the oxidation number is increased. The oxidation number is a fictive ion charge of an atom which yields when all duplets a covalent bond are assigned to the electronegative bonding partner. The most popular oxidation reactions are performed with involvement of oxygen. Some examples are: hydrogen + oxygen = water; silicon + oxygen = silicon oxide; aluminium + oxygen = aluminium oxide; iron oxide, copper oxide, etc.
oxygen
In the plasma state, oxygen has an outstanding reactivity. Oxygen is the most important process gas in plasma processors.


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News-Center

Pioneering corrosion protection by new plasma technology

Whether the aim is to provide protection against corrosion or to facilitate cleaning of a surface, the PlasmaPlus® technology newly developed by Plasmatreat offers an abundance of different layers for selective coating. AIT Aluminium International Today reports in its December 2008 issue on the pioneering corrosion protection. more...

Plasmatreat China: New Business Premises in Shanghai

On 16 October Plasmatreat China opened its new business premises in the Yalande Business R&D Park. more…

Aluminium 2008 –
Plasmatreat holds international press conference

At this year’s Aluminium 2008 in Essen Plasmatreat invited international technical journalists and representatives of the industry to a press conference. This was occasioned by two world novelties in the field of atmospheric-pressure plasma pretreatment of aluminium introduced on an industrial scale in the last two years. more...

Trade Fairs 2008