The fluid should not provoke a reaction from the material of the blank, such as a surface oxide.

The aim of the invention is to prevent a degradation of the surfaces by deposition of carbon and by surface oxidation.

Its natural color is salmon pink, but it often appears to be red owing to superficial oxidation.

The natural colour of copper is salmon-pink, but it often appears red following its superficial oxidation.

The natural colour of copper is salmon-pink, but it often appears red following its superficial oxidation.

The natural colour of copper is salmon-pink, but it often appears red following its superficial oxidation.

Just as it is the case with solid pure aluminum, a superficial oxidation takes place in the aluminum coated PET film.

Bright annealing, which is carried out in a controlled atmosphere to minimize surface oxidation

The natural colour of copper is salmon-pink, but it often appears red following its superficial oxidation.

Its natural color is salmon pink, but it often appears to be red owing to superficial oxidation.

Its natural color is salmon pink, but it often appears to be red owing to superficial oxidation.

This does not have to be a problem since it is only a superficial oxidation of the metal, it can always be restored.

The heat caused by the friction between the copper anode drillings during the mixing led to superficial oxidation of the material.

Nanostructured chemicals such as polyhedral oligomeric silsesquioxane (POSS) are added to polymers, followed by in situ surface oxidation to form a glass layer.

Because of the powerful reducing action of the atomic hydrogen, alloys containing chromium, aluminum, silicon, or manganese can be melted without fluxes and without surface oxidation.