Excerpt from Progress Report on Influence of Alloy Particle Size and Shape Showed that the spherical-particle amalgams were as (12, 13) r stronger than conventional amalgams that e stronger than conventional amalgams when both are H (12, 13) to low condensation pressures and that t superior adaptability in conforming to a cylindrica 12) In addition, data was obtained which establish itative relationship between average particle size a strength. This showed that a maximum tensile stren ined at an average particle diameter of 15 to 25 mic vability and polish of the spherical-particle amalga (13) 0 shown to depend on the particle Size Clinica of spherical particle amalgams yielded favorable and these amalgams are now used throughout the wor i summary: quantitative relationships have been est l linking the alloy particle Size to tensile strengt sive strength, flow, mercury content and dimensiona during hardening. Indirectly, these parameters ar quantitatively with the specific surface area of th es through the use of spherical particle amalgams. Ire semi  quantitative or qualitative relationships 1.