Engineering and fabrication - What technologies are available to prevent formation of aluminum oxide ?

What technologies are available to prevent formation of aluminum oxide ?

I really do not understand the question. On exposing aluminum to air, it almost instantly forms a thin layer of Al2O3 on its surface. As far as I know there is no way of stopping this (other than not exposing it to air). I suppose a thin coat of a non-oxygen bearing polymer would stop that happening. Once the alumina layer has formed there is no further reaction as the layer effectively seals the Al off. That is why Al is so corrosion resistant.