Goodfellow Corp. (Oakdale, Pa.) has announced the availability of metal, carbon and ceramic reticulated foams — low-density, permeable structures of cells and continuous ligaments designed for use as 3-D reinforcing fibers in composites and as cores in structural sandwich panels. Thanks, in part, to the continuous ligaments, reticulated foams reportedly have a high surface-area-to-volume ratio. The foams are available in aluminum, stainless steel, nickel, vitreous carbon, alumina and silicon carbide. They are said to have the same chemical resistance as the parent material and can be either conductive or insulating, depending on the formulation.