Bio-based ionic liquid crystal for stainless steel-sapphire high temperature ultralow friction
نویسندگان
چکیده
In the present work, biobased protic ionic liquid crystal bis(2-hydroxyethyl) ammonium palmitate (DPA) has been studied as neat lubricant under linear reciprocating sliding at 75 °C, in crystalline region, and 110 above its melting point. Three different tribopairs have using AISI 52100 steel, 316L stainless steel sapphire balls against disks. Tribological results °C are agreement with pairs contact conditions. At a sharp friction coefficient reduction to reach an ultralow steady state value of 0.007–0.009, is observed for sapphire-AISI contact. Wear rate also reduced one order magnitude. Results related water content DPA, determined by TG-MS. mechanism discussed upon basis optical scanning electron microscopy (SEM/EDX) surface analysis XPS. • DPA reaches sapphire-steel. Friction wear sapphire-steel lubricated lower than °C. Water loss tribological performance.
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ژورنال
عنوان ژورنال: Wear
سال: 2021
ISSN: ['0043-1648', '1873-2577']
DOI: https://doi.org/10.1016/j.wear.2021.204020