enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Cubic crystal system - Wikipedia

    en.wikipedia.org/wiki/Cubic_crystal_system

    The face-centered cubic lattice is closely related to the hexagonal close packed (hcp) system, where two systems differ only in the relative placements of their hexagonal layers. The [111] plane of a face-centered cubic lattice is a hexagonal grid.

  3. Allotropes of iron - Wikipedia

    en.wikipedia.org/wiki/Allotropes_of_iron

    BCC is body centered cubic and FCC is face-centered cubic. Iron-carbon eutectic phase diagram, showing various forms of Fe x C y substances. Iron allotropes, showing the differences in structure. The alpha iron (α-Fe) is a body-centered cubic (BCC) and the gamma iron (γ-Fe) is a face-centered cubic (FCC).

  4. Interstitial site - Wikipedia

    en.wikipedia.org/wiki/Interstitial_site

    Octahedral (red) and tetrahedral (blue) interstitial symmetry polyhedra in a face-centered cubic lattice. The actual interstitial atom would ideally be in the middle of one of the polyhedra. A close packed unit cell, both face-centered cubic and hexagonal close packed, can form two different shaped holes.

  5. Crystal structure - Wikipedia

    en.wikipedia.org/wiki/Crystal_structure

    For face-centered cubic (fcc) and body-centered cubic (bcc) lattices, the primitive lattice vectors are not orthogonal. However, in these cases the Miller indices are conventionally defined relative to the lattice vectors of the cubic supercell and hence are again simply the Cartesian directions.

  6. Atomic packing factor - Wikipedia

    en.wikipedia.org/wiki/Atomic_packing_factor

    The primitive unit cell for the body-centered cubic crystal structure contains several fractions taken from nine atoms (if the particles in the crystal are atoms): one on each corner of the cube and one atom in the center. Because the volume of each of the eight corner atoms is shared between eight adjacent cells, each BCC cell contains the ...

  7. Reciprocal lattice - Wikipedia

    en.wikipedia.org/wiki/Reciprocal_lattice

    The reciprocal lattice to an FCC lattice is the body-centered cubic (BCC) lattice, with a cube side of . Consider an FCC compound unit cell. Locate a primitive unit cell of the FCC; i.e., a unit cell with one lattice point. Now take one of the vertices of the primitive unit cell as the origin.

  8. Structure factor - Wikipedia

    en.wikipedia.org/wiki/Structure_factor

    Face-centered cubic (FCC) The FCC lattice is a Bravais lattice, and its Fourier transform is a body-centered cubic lattice. However to obtain without ...

  9. Cottrell atmosphere - Wikipedia

    en.wikipedia.org/wiki/Cottrell_atmosphere

    Cottrell atmospheres occur in body-centered cubic (BCC) and face-centered cubic (FCC) materials, such as iron or nickel, with small impurity atoms, such as boron, [2] carbon, [3] or nitrogen. [citation needed] As these interstitial atoms distort the lattice slightly, there will be an associated residual stress field surrounding the interstitial.