The

lattice parameter of garnet-1 was close to that of almandine (Fe garnet, a = 11.526 [Angstrom]).

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].

Table 1 summarizes the position and the width at midheight (FWHM) of the main peaks, along with the

lattice parameter values calculated from the XRD patterns of the pure and codoped ZnO nanopowders.

Two factors, namely strains and

lattice parameter changes, will contribute to the shift of diffraction peaks [26].

The effects of ball milling on the hydrogen sorption and disproportionation behaviors of [Zr.sub.0.8][Ti.sub.0.2]Co sample can be deduced from the changed microstructure including

lattice parameter, morphology, elemental composition, and crystal defects.

where a is the

lattice parameter, u is unbroadened by faulting, b is the number of reflections broadened, and [L.sub.0] is the third coordinate replacing (hkl) indices ([L.sub.0] = h + k + l) [33].

The term [lambda](|x - x'| , [alpha]) is a kernel function representing nonlocal modulus, where |x - x'| is a distance in Euclidean space and [alpha] is a material parameter depending on internal and external characteristics (

lattice parameter, granular size, distance between C-C bonds, graphene sheet length, wave length, etc.).

The peak profile analysis and

lattice parameter determination has been carried out JCPDS-data.

11 Ghadim reported Se4+ has an association with enamel

lattice parameters along the a-axis and c-axis.5 The ionic radius of Se4+ (0.50 A) is larger than that of P5+ (Phosphate) (0.35 A), For that reason, on substitution in synthetic HAp the

lattice parameter increases.12

From 1998 to 2011, the NIST lattice comparator played an important role in the International Avogadro Project by measuring

lattice parameter variations in highly perfect isotopically natural silicon material and highly enriched [sup.28]Si material [2-4].