Effect of Carbide particles on tribological properties of phenolic resin

The phenolic-based composite and components are widely used because of their excellent thermal, tribological and mechanical behaviors. In present study, phenolic resin composed of hexamine, novalac, furfural and furfuryl alcohol has been used. The 3-point flexural test on the resin was investigated. Effect of two carbide nano-particles (SiC and TiC) on the tribological properties of phenolic resin were experimentally investigated. In this study, a special focus is to show effect of different fillers and proportion of particles and normal load on wear rate and coefficient of friction. The proportion of filler were 0.5, 1 and 2 vol.% and experiments carried out under 40, 50, 60 and 70N loads and at 0.2m/s speed. The fillers were ultrasonically mixed with phenolic resin and molded in form of (8.5mm diameter × 25mm height) cylinder. The samples were cured at 135°C with special heating cycle. The wear tests were performed on pin-on-disk testing apparatus and at ambient temperature. The composite pin were tested in dry sliding against 52100 steel. The wear surface of samples have been investigated by SEM and role of nano showed on different wear mechanisms. Observations showed that carbide particles enhanced tribological properties of phenolic resin.

کلیدواژه ها:

Nanocomposite ، Tribological properties ، Pheolic resin ، carbide particles