Needs reviewLiterature-derived experiment

Hardness comparison

mechanical testing linked to Experiment, with source literature and related extracted records kept visible.

100%

Confidence

Literature sources

Linked simulants

Linked properties

Record profile

Measurement type

mechanical testing

Application

Experiment

Primary source

Tribological performance of hard coatings and polymer interfaces under the effect of lunar regolith

Review state

needs review

Linked simulants

LHS-1Dlunar regolith simulantNeeds review

Related properties

Particle morphologyimaged by SEM100%Particle sizemeasured100%thicknessmeasured100%Hardnessmeasured by indentation, Vickers, Knoop, or nanoindentation100%Friction CoefficientPTFE: 0.04-0.10, PTFE+15%GF+5%MoS2: 0.03-0.08, PEEK: 0.05-0.12, UHMWPE HD1000: 0.06-0.15100%

Evidence snippets

Direct studies of in-situ lunar regolith micro-hardness find H = 6.89 9.67 GPa [16 ]. By comparison, prior analysis of these hard coatings for Venusian conditions found that PS400 had a hardness of 2.