Internal Trigger Parts Coatings

[Clusterfrack]

(FWIW, I'm not much interested in the mu of a surface without lubrication, but it is logical that a surface with a very low mu lube-free would be at least as good and more likely even lower with appropriate lubricant. Barring some weird, non-obvious interaction, of course.)

Interestingly, this is not the case. The friction coefficient between two dry surfaces is not a good predictor of their behavior with a lubricant.

[OlongJohnson]

Interestingly, this is not the case. The friction coefficient between two dry surfaces is not a good predictor of their behavior with a lubricant.

I'm enough of a geek to want to learn more. Do you have any relevant literature you could point me toward? I tried googling and came up with more bot-compiled spam sites than actual relevant info.

[Clusterfrack]

I'm enough of a geek to want to learn more. Do you have any relevant literature you could point me toward? I tried googling and came up with more bot-compiled spam sites than actual relevant info.

Boundary lubrication is a deep topic... The short answer is that lubrication often works better when the lubricant can chemically adhere to the surfaces. That means the surface energy needs to be high enough to adsorb lubricant. Low friction smooth dry surfaces typically have low surface energy.

Here are a few random links to get you started...

https://www.sciencedirect.com/topics...ry-lubrication
https://www.researchgate.net/publica...Concentrations
https://pubs.acs.org/doi/10.1021/acs.langmuir.1c01581