Figure 1From: Nanoscale potassium niobate crystal structure and phase transition FESEM images of nanoscale KNO 3 powders obtained by heat-treating gels. At (a) 600°C, (b) 700°C, and (c) 800°C. (d, e, f) TEM images of a nanocrystallite from (a), (b), and (c), respectively.Back to article page