Direct Preparation of Y₂SiO₅ Nanocrystallites by a Microwave Hydrothermal Process

Figure 5

FESEM images of the precursor powders prepared by microwave hydrothermal process (a) without heat treatment, (b) with heat treatment at 700°C for 2 h and (c) with heat treatment at 900°C for 2 h.

(a)

(b)

(c)