325605.fig.002a
(a)
325605.fig.002b
(b)
325605.fig.002c
(c)
325605.fig.002d
(d)
325605.fig.002e
(e)
325605.fig.002f
(f)
Figure 2: SEM images of microstructures on surface of sintered calcium phosphate pellets prepared in ratio of [Ca]/[P] = 1.50 and immersed in normal saline solution at 37°C for various lengths of time: (a) 2 d, (b) 4 d, (c) 7 d, (d) 14 d, (f) 28 d, and (f) 42 d.