超微粒子の充填に関する一考察

概要

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The packing fraction of ultrafine particles was estimated by computer simulation. In the simulation, it was assumed that particles, onec contacted with others on tentative places, keep the contact, and a function (Shake Off function) which selects either of expelling a particle from or fixing it to the tentative place was introduced. As a result of the simulation, the packing fractions by volume of cubic and spherical particles were 0.22-0.59 and 0.20-0.40, respectively. On the other hand, the observed values of the packing fraction of alumina particles in the fired compacts prepared by mixing alumina (mean value of diameters, 20 nm) with a large quantity of forming agents and firing were in the range of the values obtained from the computer simulation.
社団法人日本セラミックス協会の論文
1988-05-01