In nature, several packing arrangements are possible, including the face-centered cubic arrangement. Metal atoms naturally pack themselves in a close arrangement to form the strongest metallic bond possible. Due to their packing arrangement, FCC metals are typically softer and more ductile than their BCC counterparts are, which may be an important factor when selecting materials for a given application.įace-centered cubic may also be known as cubic close-packed (ccp).Ĭorrosionpedia Explains Face-Centered Cubic (FCC) The atoms in the FCC unit cell arrangement are packed closer than other cell arrangements (such as the body-centered cubic (BCC), which is the simple unit cell arrangement). (1/2 atoms x 6 faces) + (1/8 atoms x 8 corners) = 4 atoms Using this concept, the total number of atoms in the FCC unit cell structure is 4 six halves at each of the faces, plus eight one-eighth atoms at the corners. The atoms at each face of the unit cell are shared with adjacent unit cells therefore, each face atom represents half of an atom. As such, each corner atom represents one-eighth of an atom. The atoms at the corner of the cube are shared with eight other unit cells. A face-centered cubic unit cell structure consists of atoms arranged in a cube where each corner of the cube has a fraction of an atom with six additional full atoms positioned at the center of each cube face. What Does Face-Centered Cubic (FCC) Mean?įace-centered cubic (FCC or cF) is the name given to a type of atom arrangement found in nature.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |