Recent content by jakobus

Hi CWatters, thank you! That is exactly my problem: I was also thinking about thin layers, but the colors don't move when changing position. So the question is: are colors fixed because they are not due to thin layers or because, as ehild put it, the angle doesn't play a big role? In fact you...

Hi Ehild, thank you very much for your answer. Yeah, I thought about that too. The problem is that, as far as I understand, the changes in the amount of the elements we found give no really clear answers, whether the colors are due to different chemical compositions or, maybe, thin films...

Thank you very much you guys for your help! Ehild, this is really unexpected for me! I didn't think to do such a simple calculation! Well, Danger, we are working in a clean room, where the environment is quite pristine and the air always remains at ≈20°C with ≈40% humidity, even less. We...

Hi everyone. I have the following question: on passivated copper sheets used under high electric fields I found some color patterns I can't really explain. A possible explanation would be that there are some thin layers of material on top of pure copper, for instance the copper dioxide coming...