Friction and Wear Properties of Silicon Nitride-Based Composites with Different hBN Content Sliding against Polyether-Etherketone at Different Speeds under Artificial Seawater Lubrication
Source abstract
Abstract
In the present study, the friction and wear behaviors of Si3N4-hBN(Hexagonal boron nitride) ceramic composites against polyether-etherketone in artificial seawater were investigated, and the sliding speed was varied from 0.52 to 1.73 m/s to study the effect. It was found that the friction coefficients and wear rates decreased with the increase in sliding speed for Si3N4-hBN (with the hBN content ranging from 5% to 20%) against PEEK(Polyether-ether-ketone); the sliding pairs represented an upward trend as the speed increased for Si3N4-hBN (with an hBN content of 0 and 30%) against PEEK. This result was mainly attributed to complex friction resistance sources, such as mechanical meshing and the shear strength of soft tribofilm. On the other hand, both the hBN content and sliding speed had a significant effect on the tribological performance of the Si3N4-hBN/PEEK pairs. Meanwhile, the lowest friction coefficient of 0.07 and wear rates below 10−6 mm3/Nm were obtained from the Si3N4-20%hBN/PEEK pair at the speed of 1.73 m/s.
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Research context
OpenAlex topics: Tribology and Wear Analysis · Diamond and Carbon-based Materials Research · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China
College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
Funding
Natural Science Foundation of Shaanxi Province, China
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