Oxidation of Copper, Gold and Aluminum 1

[SemiconProcess]

Hello guys...I have a difficulty in determining the factors that greatly affect the rate of oxidation of Copper, Gold and Aluminum.

On the other hand i know that of the three elements, Aluminum has the highest tendency to oxidize,2nd is Copper and third is Gold basing on their Electronegativity.

 

[cloa]

You want oxidation kinetics and if you are talking air- its really simple- temperature speeds it up.

 

[SemiconProcess]

Thanks cloa..may i know the temperature ranges of each element that their oxidation is highly notable..

 

[IRstuff]

Gold does not oxidize, ever. Aluminum oxidation, under normal conditions, is self-limiting:

http://web.nfba.org/html/files/other/TB105-Oxidation.doc

TTFN

FAQ731-376
Chinese prisoner wins Nobel Peace Prize

 

[blacksmith37]

And Cu oxidizes solwly in (hot) air, but the oxide does not adhere (due to thermal expansion difference) .So Cu has poor oxidation resistance in cycling temperatures, despite a low oxidation rate.