Hi, Lets say I have two metal circular plates of diameter about 10mm. If I press them together with a force of about 1-10N at temperature of 4K and hold them like that for couple of hours, will it be possible to separate them apart again at 4K (same environment) using no force (less than 1N) or force cmoparable to the pressing force. This probably depends on the surface roughness and metal used, but is there some general rule for this, for some tyicaly used materials combinations (copper, aluminum, titanium, stainless steel) ? Does someone knows where I can find more information on this, like books ? or you can just share your thoughts on this problem.