High Performance Space Lubrication of MoS <sub>2</sub> with Tantalum
نویسندگان
چکیده
Molybdenum disulfide coatings have been employed as lubricants for spacecraft since the 1950s but continue to face major engineering challenges including performance in both terrestrial air and deep space vacuum environments service lifetimes on order of decades without maintenance. Co-deposition MoS2 with additive compounds provide enhancements some circumstances a lubricant which can perform all space-facing long remains an ongoing problem. Herein, it is demonstrated multi-environment adaptable novel + tantalum coating, excels while benchmark space-qualified commercial do not. It noted that 10% exhibits preferential oxidation preserve lubricating ability forming phases TaS2, aid exceptional lubrication ultra-high vacuum. Additionally, completely different tribofilms small particles compact sheets are environments, respectively, allows mechanisms from single coating depending environment. This sets first instance fully versatile offers high-performance environments.
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ژورنال
عنوان ژورنال: Advanced Functional Materials
سال: 2022
ISSN: ['1616-301X', '1616-3028']
DOI: https://doi.org/10.1002/adfm.202110429