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The heat-transfer capability affects the tribological properties of Ti6Al4V alloys. In present paper the friction and wear behaviours of Ti6Al4V alloys dry sliding against GCr15 steel were investigated on a high-speed pin-on-disc tribometer. Friction and wear tests were carried out at sliding speeds from 30 to 60m/s and at contact pressure ranging from 0.33 to 1.33MPa. In order to change the heat-transfer...
The sliding wear performance of epoxy composites filled with nano-sized Al 2 O 3 particles was studied in the present paper. To enhance the interfacial interaction between the fillers and the matrix polymer, the nanoparticles were pretreated by either silane coupling agent or graft polymerization. The experimental results indicated that the frictional coefficient and wear rate of epoxy...
To overcome the disadvantages generated by the loosened nanoparticle agglomerates dispersed in polymer composites, an irradiation grafting method was applied to modify nanosilica by covalently bonding polyacrylamide (PAAM) onto the particles. When the grafted nanosilica was added to epoxy, the curing kinetics of the matrix was accelerated. Moreover, the grafting PAAM can take part in the curing of...
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