Which atomic structure is associated with high ductility and good thermal conductivity?

Face-centered cubic (FCC) structures are associated with high ductility and good thermal conductivity due to their unique atomic arrangement. In an FCC lattice, atoms are positioned at each corner of a cube and at the center of each face, creating a closely packed structure. This arrangement allows for a higher number of slip systems, providing the material greater plasticity and ductility. As the atoms can move more freely due to this increased number of available slip planes, FCC metals are generally more malleable and ductile compared to other structures.

Furthermore, the close packing in FCC structures allows for efficient conduction of heat. The atoms within FCC metals can vibrate and transfer energy more effectively, contributing to higher thermal conductivity. Common metals exhibiting FCC structures include aluminum, copper, and gold, which are known for both their ductility and excellent heat transfer capabilities.

In contrast, other structures such as body-centered cubic (BCC) may exhibit less ductility and thermal conductivity due to their fewer slip systems and more complex atomic movement. Close-packed hexagonal (CPH) structures also have limited slip systems compared to FCC, which may restrict ductility. Randomly oriented cubic (ROC) is not a commonly recognized crystal structure in metals and does not represent the characteristics associated with