| 摘要 |
PROBLEM TO BE SOLVED: To precisely measure a particle size distribution of fine particles even when a distribution width of particle sizes of the fine particles is wide.SOLUTION: The measuring method for a particle size distribution of fine particles in metal includes an extraction step of extracting fine particles in a metallic material, a dispersion step of preparing a fine particle dispersion solution by dispersing the fine particles extracted in the extraction step in a liquid; a classification step of classifying the fine particles in the fine particle dispersion solution by particle sizes by applying centrifugal force to the fine particle dispersion solution prepared in the dispersion step; and a calculation step of calculating volume fractions of the fine particles by the particle sizes classified in the classification step. Consequently, even when a distribution width of the particle sizes of the fine particles is wide, the particle size distribution of the fine particles can be precisely measured. |
