![Sample our Earth Sciences journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5930/TOC-Subject-Sample-2021-Earth-Sciences.jpg"})
Abstract
Computer simulations to the porosity of starting materials for the synthesis of polycrystalline diamond (PCD) bodies are described. The logarithmic normal distributed spheres were deposited in three dimensions by means of random coordinates. Conditions for distances between the particles have to be satisfied. Thus one can realize a defined overlapping, contact or distance. Results were obtained for the porosity dependence as a function of standard deviation of the size distribution and particle overlapping. The comparison of calculated and measured porosity under normal pressure showed good agreement. The filling of pores yielded the estimation of pore size distribution and a clear reduction of the pore volume.