Implanting MnO2 into Hexagonal Boron Nitride as Nanoadditives for Enhancing Tribological Performance

نویسندگان

چکیده

Hexagonal boron nitride nanosheets (h-BNNs) show great potential in the field of tribology due to their typical two-dimensional layered structure and are essential for replacing conventional sulfur/phosphate-containing additives. However, large particle size poor dispersion h-BNs seriously restrict green lubrication application. In this paper, MnO2@h-BNNs nanocomposites were successfully prepared by ultrasonically exfoliating a hydrothermal method. The tribological properties as lubricant additives poly-alpha-olefin oil (PAO) investigated. results dispersed with 0.25 wt% had best friction reduction antiwear effect 42% 11.2% reduction, respectively, compared plain oil. Through further wear surface analyzing, we verified mechanism filling micropits grooves on forming protection film including Fe2O3, MnO2, BN surface, avoiding direct contact between subsets. This can provide ideas other lubricating

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ژورنال

عنوان ژورنال: Crystals

سال: 2022

ISSN: ['2073-4352']

DOI: https://doi.org/10.3390/cryst12040451