fcc lattice

fcc lattice

[¦ef¦sē¦sē ′lad·əs]
(crystallography)
References in periodicals archive ?
The FCC lattice parameter for the [Cr.sub.23][C.sub.6] carbides was calculated from the XRD diffraction charts yielding to 1.075 nm, which is consistent with the values of 1.06 to 1.11 nm reported in the literature [14-16].
These materials have low mechanical and tribological properties; 2) the Si homogeneous solubility in the TiN FCC lattice to form the stoichiometric compound [Ti.sub.1-x][Si.sub.x][N.sub.y], with low content of silicon.
FCC lattice is preferred to cubic lattice since the former provides a higher degree of freedom for placing an amino acid and has a higher packing density [40].
The first point is assigned as (0, 0, 0), which is a valid point in the FCC lattice. The rest of the points follow the constraint, [[for all].sub.i<n]([[??].sub.i]) [member of] {[v.sub.1], ...,[v.sub.12]}.
489 angstroms ([square root of 2]/2 times of three-dimensional nickel fcc lattice parameter).
As can be seen from figure 2, the brass samples have a dual phase structure, made of a mixture of [alpha] solid solution (Zn in Cu solid solution, with a FCC lattice) and [beta]' solid solution (a solid solution based on the electronic compound CuZn, with an electronic density of 3/2, and with a BCC lattice).
So, in powders of investigated alloys (mixture of quasi-crystalline alloys [Al.sub.63][Cu.sub.25][Fe.sub.12] and [Ti.sub.60][Cr.sub.32][Si.sub.8]) formation of cubic crystal 1/1 approximant of icosahedral [alpha]-phase with spacing of FCC lattice about 1.193 nm (spatial group Fm3m) was registered at ratio of the components 85:15 and 75:25, in contrast to BCC simple cubic lattices, which were previously detected in such phases.
In our parallel local search, we use both the HP energy model and 20 x 20 BM energy model on the 3D FCC lattice space.
2 since band degeneracy at some high-symmetry points, which are W and U points for a fcc lattice, H and P points for a bcc lattice, and Mand R points for a sc lattice.
With the Al layer thickness reduced from 5 nm to 1nm whilst that of the W layer maintained at 5 nm (i.e., [Al.sub.1nm]/[W.sub.5nm]), the HRTEM image shown in Figure 3(a) indicated that the Al layers had transformed completely from fcc lattice into bcc lattice, generating accordingly an unusual stacking sequence of bcc Al/bcc W multilayers.