Percolation and Universal Scaling in Composite Infiltration Processing A. Léger J. M. Molina-Jordá L. Weber A. Mortensen 10.6084/m9.figshare.1153741.v3 https://tandf.figshare.com/articles/journal_contribution/Percolation_and_Universal_Scaling_in_Composite_Infiltration_Processing/1153741 <div><p>Composite materials are often made by infiltration, that is, by injecting a liquid matrix between packed solid fibers or particles. We give here direct proof that molten copper, slowly infiltrated into a broad spectrum of preforms, displays in initial phases of the process universal scaling and fractal geometric features that are characteristic signatures of percolation-dominated flow. Implications are that the microstructure of infiltrated composite materials can develop over length scales that far exceed the average preform pore size, and that network models are pertinent in the simulation of composite infiltration processing.</p></div> 2015-01-06 15:53:27 network models infiltration processing spectrum microstructure Composite Infiltration Processing Composite materials matrix percolation Universal Scaling phase implication preform pore size fractal length scales flow simulation display proof