TRIBOLOGY IN INDUSTRY, cilt.45, sa.4, ss.604-617, 2023 (SCI-Expanded)
The solid particle erosion (SPE) performance of three different
transparent materials, polycarbonate solid sheet, plexiglass
(Polymethylmethacrylate (PMMA), and laminated glass was investigated.
Erosion tests were performed under different impact angles (20°, 30°, 45°,
60°, and 90°) and impinging velocities (75, 150, and 200 m/s). As erodent
particles, alumina (Al2O3) with 52 μm average diameter and silicon
carbide (SiC), particles with two different dimensions (71, and 348 μm in
diameters) were used. The results showed that polycarbonate specimens
outperformed the other tested samples regardless of impact velocity and
impinging angle conditions. When the erosion resistance of samples at 90°
and 75 m/s is taken into consideration, the polycarbonate sheet was found
to be at least 14 times more erosion resistant compared to plexiglass, and
23 times more resistant than the laminated glass materials. In addition,
polycarbonate exhibited an incubation behavior at lower impact velocity,
and with SiC erodent.