PARTICLE DIAMETER CALCULATION METHOD OF POWDER PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a technique capable of accurately measuring at least any of the number and forms of particles even if the particles are massed together.SOLUTION: A particle diameter calculation method of powder particles is a method for calculating an average particle diameter of a sample including a plurality of particles. The method includes measuring a high angle annular dark visual field scan type transmission electron microscope (HAADF-STEM) image of a sample, applying image processing to the measurement result to find a profile of luminance corresponding to the image, and calculating an average particle diameter of the particles from the profile.SELECTED DRAWING: Figure 4