In this paper

we study the amount and size distribution of aerosol particles formed in an explosion in a sealed metal container in presence of a silver sample.Aerosol samples were collected for different minutes at different time after the explosion.The samples were weighed

and examined by neutron activation analysis

scanning electron microscopy and X-ray diffraction.The results indicated that changes in size distribution of the particles depended on the process combining Brown aggravation and gravitation sedimentation in the container.The aerosol particle size in relatively stable gas phase distributed mainly around 1.8 μm.The Ag particles had a segregating behavior in particles of different sizes.Most Ag aerosol particles under 10 μm size consisted of small polycrystalline aggregates

and the average crystalline size was 27.3 nm.