I'm trying to figure out some things regarding leak rates. I have a system which is constructed to adhere to UHV standards (total leak rate < 10^-10 Torr*L/s), baked out and evacuated to 10^-9 Torr, and then backfilled to about 600 Torr with N2 and Xe. So, there's a leak of air from the outside...
I'm pretty sure that aluminum oxide layer is going to be problematic if you mill. I can't give you a good reason why, but it stands to reason that, if you could get rid of the porous oxide layer just be milling, people wouldn't bother with all these wet etches. If you can burn through a bunch...
Hello everyone. I need to simulate flux densities generated by thin films of permanent magnets of varying composition. This is to guide selection of parameters for sputtering of Nd-Fe-B permanent magnets. Does anyone know of a program which will allow me to simulate fields from permanent...
Just realized that you may not have been talking about using Al as a UHV construction material, just as something inside of a standard SS UHV vessel. If that's the case, sorry for all the unnecessary info.
I've researched this topic pretty extensively for some UHV projects I'd like to work on. I want to use Al it's much cheaper and easier to machine than stainless steel, I have access to tons of it, and I don't have tons of money to throw at buying stainless steel UHV components.
Aluminum is...