Cold welding in space is prevented by surface treatments and oxide layers on metals.
the verdict
SUPPORTED
the evidence backs this
confidence 84/100
Surface treatments, coatings, and passivating layers serve as critical mechanisms to prevent cold welding between contacting metal surfaces in the vacuum of space.
Evidence for · 2
Superlubricity of Silicon-Based Ceramics Sliding against Hydrogenated Amorphous Carbon in Ultrahigh Vacuum: Mechanisms of Transfer Film Formation
2024 · cited by 21
Paper 3 demonstrates that transfer films (such as passivating carbon nanofilms) prevent cold welding and achieve superlubricity by separating sliding surfaces in ultrahigh vacuum conditions.
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More for · 1
Systematic investigation of wear-induced cold welding in ultrahigh vacuum piezoelectric motors with non-metallic coatings.
2023 · cited by 4
Paper 7 discusses how non-metallic coatings and surface treatments effectively prevent wear-induced cold welding in ultrahigh vacuum environments.