Research Article

Fabrication of Highly Porous Alumina-Based Ceramics with Connected Spaces by Employing PMMA Microspheres as a Template

Figure 4

SEM photographs of (a) P20MgO(1) and (b) P20MgO(3).
601850.fig.004a
(a) P20MgO(1)
601850.fig.004b
(b) P20MgO(3)