Talk:Stiction

message: I think the main Problem with this "disambiguation" page is that it is no real disambiguation, since, as far as my understanding goes, all three subpages describe the same physical effect.--Deelkar  (talk) 02:59, 4 May 2005 (UTC)

message: The sentence describing a burnout seems like it does not fit the style of a Wikipedia page. I think the description is a nice way to describe breaking free of stiction or rolling friction but is written like an opinion. Adrianedelen (talk) 19:05, 1 April 2021 (UTC)
thread_title:  opinion style writing in automobile section 

message: Modified the paragraph regarding hard disk stiction to reflect current views.  —Preceding unsigned comment added by Pdinhofer (talk • contribs) 16:53, 11 January 2008 (UTC)
thread_title:  minor editing and some correction 

message: The experiment at the top of the page is faulty, because of course the piece of wood is not moving at a steady speed, but at an accelerating rate, so in order for it to stop, it wouldn't merely have to resist the movement by friction, but would have to also with that friction be able to counteract the already accumulated impetus. I am not sure if I am explaining this at all coherently, but in any case it is clear to me the experiment doesn't demonstrate what it purports to demonstrate. -- Cimon Avaro; on a pogostick. (talk) 15:33, 14 April 2008 (UTC)
replies: text: I don't like this article overall, but that example seems to be a valid experiment to show that kinetic friction is lower than static friction. This "impetus" (inertia) that you describe is, I think, part of the reason that kinetic friction is lower, but the example assumes small initial bump to get it moving; presumably that could be an arbitrarily small initial velocity. —Ben FrantzDale (talk) 00:19, 15 April 2008 (UTC)
replies: text: It could be arbitrarily small only in theory, and experiments aren't about "in theory" but about "in practise". So that makes it a poor real experiment. In practise, what is what experiments are about, there will be a noticable overshoot of the necessary initial velocity, and after that acceleration will take over, with no return in sight. I wonder If what I say is more understandable if I phrase it like that. -- Cimon Avaro; on a pogostick. (talk) 01:32, 15 April 2008 (UTC)
replies: text:  Yes and no. In practice you could probably give the block an initial velocity of well less than 1mm/sec and have it still keep going. At some point the assumptions of Coulomb friction will break down, though, so you'll need a better model of physics. For example, if the elasticity of the block becomes significant, then moving the top of the block at velocity v could mean that the bottom of the block is still stopped. If you then let go of the top, it would recoil (albeit not very far :-) ). I suspect that for most common materials, this elasticity is the first thing that makes this experiment break down; as long as the contact surface of the part is moving as a rigid body, it should all break static friction all at once. There is, of course, an end to the acceleration which is the terminal velocity. The real proof is in the pudding, though. Give it a try: Take a surface you can tip and a small rigid thing that sits flat on it. Tip the surface until the thing starts to slide. Then tip the surface back down a bit. Put the thing back on the surface and see if you can nudge it slow enough so that it moves but doesn't take off on its own. I just tried it with a small jar on a wooden box and couldn't push the jar slowly enough for it to not start sliding on its own. —Ben FrantzDale (talk) 02:21, 16 April 2008 (UTC)
replies: text: That may be so, I still think "experiment" may not be the best word for it. Perhaps "demonstration", since it does indeed illustrate the fact to the layman, but fails to be rigorous in the scientific sense, so as to be a valid experiment. Would it be okay to you if we substituted the word "demonstration" for "experiment"? -- Cimon Avaro; on a pogostick. (talk) 06:02, 20 April 2008 (UTC)
thread_title:  Faulty experiment 

message: wat 186.155.50.216 (talk) 22:34, 15 March 2016 (UTC)
thread_title:  "Leading engineers in the field have found in their research that 9 out of 10 failing injectors in diesel trucks are cases of stiction, and once removed are still in optimal working condition." 

message: I notice a lot of the comments are along the lines of "What are we really talking about?" What I can contribute is that stiction comes up a lot in valve seals for medical and semiconductor manufacturing. A good example is this gate valve seal that is used in the deposition and etching of semiconductor wafers:  https://youtube.com/shorts/5zyi-h-G1uc?si=yA4pcddacfwtS5hU
The more the seal sticks to the metal, the sooner the rubber seal will wear out and need to be replaced. Uptime is hugely important in semiconductor manufacturing, so maximizing the time between seal replacement is important. Thus a low stiction rubber seal is desirable. Also, here are some sources we may want to consider:
:https://www.exida.com/Blog/Stiction-Fact-or-Fiction-Start-Time-Prediction
:https://www.exida.com/Blog/what_is_stiction
:https://www.exida.com/Blog/how_does_stiction_affect_me
--Westwind273 (talk) 01:40, 12 October 2023 (UTC)
thread_title:  Semiconductor and Medical