Tribological behaviors of B 4 C-hBN ceramic composites used as pins or discs coupled with B 4 C ceramic under dry sliding condition
Source abstract
Abstract
Abstract Used as pin or disc specimens, the tribological behaviors of hot-pressed B 4 C-hBN ceramic composites containing different contents of hBN (0, 5, 10, 20 and 30 wt%) coupled with B 4 C ceramic under dry sliding condition have been investigated using a pin-disc tribometer. Experimental results show that, the dry sliding tribological behaviors of B 4 C-hBN ceramic composites against B 4 C are obviously different when B 4 C-hBN ceramic composites are used as pin or disc specimens, respectively. When B 4 C-hBN ceramic composites are used as pin specimens, with hBN content increasing, the friction coefficients of B 4 C-hBN/B 4 C pairs gradually increase; however, when B 4 C-hBN ceramic composites are used as disc specimens, with hBN content increasing, the friction coefficients of B 4 C/B 4 C-hBN pairs gradually decrease. The reasons that cause the discrepancy are discussed.
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Research context
OpenAlex topics: Boron and Carbon Nanomaterials Research · Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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