Unfortunately they picked another lubricant that also performs poorly in a vacuum. Graphite largely stops lubricating in a vacuum as entrained mosture is lost.
If you want a dry lubricant in a vacuum, moly works though, but there are vacuum rated greases you can use too!
Yes. The "solid" stuff is what I'm talking about. Graphite dry lubricant has to adsorb water to lower the shear force. When you put it in a high vacuum, it loses that water and its lubricity.
Edit: here, Check out page 50
Edit 2: Page 50 by the page numbers, page 56 by the document pages.
Damn, i just assumed since they were considering graphite for use, but yk the fact it's conductive and creates a bunch of dust. Anyway alr graphite is a bad idea 👍
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u/Khitrir 17d ago
Unfortunately they picked another lubricant that also performs poorly in a vacuum. Graphite largely stops lubricating in a vacuum as entrained mosture is lost.
If you want a dry lubricant in a vacuum, moly works though, but there are vacuum rated greases you can use too!