Cryogenically treated cables

 its high electrical conductivity (59.6×106 S/m) and high thermal conductivity, second highest (second only to silver) among pure metals at room temperature.[10] This is because the resistivity to electron transport in metals at room temperature originates primarily from scattering of electrons on thermal vibrations of the lattice, which are relatively weak in a soft metal

Look, if we want to argue about 18 year old threads we will! ... but thank you for reminding us what idiots we are. I will go and hang my head in shame now .... over and out (of this thread).

thecarpathian702 posts11-06-2019 7:58pmYou guys realize this thread is 18 years old, right? And since the OP hasn’t posted anything new anywhere since 2001, I’m gonna go out on a limb and say he’s pretty much moved on......probably in more ways than one.

hemigreg
The electrical activity in copper when brought back to room temp will not be any better than with no treatment. ive done cross sections of copper/gold/silver/plat/irridium/plutonium/thorium/ etc in research for conductivity and transmission speed of the electron/hole pairs for semiconductor chip upgrades cause the time a Ghz signal enters a pc board to the time it hits the transistor junction in the processer does make a lag in the output. but that is only signifient in the GHZ freq range. totally silly effect in the khz and down. even high freq MRI magnets with cryo cooled power supplys are for the reason of lower resistance and no infulence in the resultant mri results- so if you think itsounds different its your $$ to waste. ive done it to liquid HE,H.O2, and colder.you may likely suffer more damage due to slip face kinda like embritlement in the lattice no matter how slow warmed up, the inital cold shock will offset the lattice a few minutes/deg. upsetting the outer 3-4 electrons orbit. yea.
otherwise copper is ultra stabil electrically and mechanically. cryo for fe based elements is a totally different reason.

>>>>Gee, that’s too bad. Must be mass hysteria or hypnosis. How else to explain all the many hundreds of thousands of cryod cables and fuses and vacuum tubes sold? Are all these cable companies that cryo their cables wasting their time and everybody else’s? Was NASA duped, too? OMG 😲

"...the electrical activity in copper when brought back to room temp will not be any better than with no treatment."

Finally! Thank you!

I have been trying to gently imply that warming it up may negate any possible benefit from cooling but to no avail.

"Are all this cable companies that cryo their cables wasting their time and everybody else’s?"

They are spending their time wisely and in a lucrative way. Question of ethics may remain, though.

"Was NASA duped, too?"

Yes, big time, They hired geoffkait.