493867.fig.004a
(a)
493867.fig.004b
(b)
493867.fig.004c
(c)
493867.fig.004d
(d)
Figure 4: Curve fitting according to the Zernike-Prins model for PU composites loaded with (a) 0, (b) 20, (c) 40 and (d) 60 wt.% Co.