Figure 4
Photographs of BaTiO3 powder grains attached to the tip of the fine glass fibre: (a) optical-microscope image. (b) SEM image of the same sample. The size of the large grain is about 600 × 600 × 300 nm. A and B in each figure show the positions of existing BaTiO3 grains. (c) Measured diffraction image of BaTiO3 grains. All measured images are overlapped on one image to see Bragg diffraction spots clearly. The vertical and horizontal 2θ range of the image are ±45° and −30–60°, respectively. The inset is a 50% probability level ORTEP image of the refined BaTiO3 crystal structure. |