Research Article

Obtaining Highly Crystalline Barium Sulphate Nanoparticles via Chemical Precipitation and Quenching in Absence of Polymer Stabilizers

Figure 5

HRTEM image of BaSO4 nanoparticles (a); FFT image (b) (particle 1), (c) (particle 2); masked power spectrum FFT (c) (particle 1), (d) (particle 2); image after performing inverse FFT on the masked power spectrum (c) and (d).