FCCMetalle

FCCMetalle are metals that crystallize in a face-centered cubic (FCC) crystal lattice. In this structure, atoms occupy the cube corners and the centers of all faces, giving a high packing efficiency of about 0.74 and 12 nearest neighbors. The FCC arrangement provides a rich set of slip systems, particularly the {111} planes with <110> directions, which contributes to high ductility and formability.

Common examples of FCC metals include aluminum (Al), copper (Cu), silver (Ag), gold (Au), nickel (Ni), and platinum (Pt). Some iron-based materials also exhibit an FCC structure under certain conditions, such as austenitic stainless steels in their gamma-Fe phase. These materials are widely used because of their combination of ductility, malleability, and favorable electrical and thermal conductivities.

Properties of FCCMetalle typically include high ductility and toughness, good malleability, and generally strong resistance to deformation before yielding. Electrical and thermal conductivities are notable in metals like copper and silver; corrosion resistance varies by element and alloy. The mechanical behavior of FCCMetalle can be enhanced through alloying and work hardening, which increase strength while preserving much of the ductility.

Applications of FCCMetalle span electrical wiring (copper and aluminum alloys), packaging and construction (aluminum), and jewelry and coinage (gold, silver, platinum). Their widespread use reflects the combination of formability, conductivity, and, in many cases, corrosion resistance, supported by the underlying FCC crystal structure.