The glass samples were analyzed by XRD using the Cu Kα wavelength
(λ=1.5418740 Å) of a X'Pert Pro X-rays diffractometer from
PANalitycal in the Bragg-Brentano configuration equipped with a
X'Celerator as detector. The samples were measured in the range of
20 - 90° with a step of 0.008° and a time per step of 60s, The XRD
pattern of the glass samples are presented in Fig. 10.
Each glass presents a response due to amorphous and crystallites
presence in the range of 20 to 80°. The position of the diffraction
peaks match well with silver [23], according to the JCPDS file number
004–0783 and number 001–1241 for copper. The Scherrer formula was applied on the most intense peaks fitted by a pseudo-Voigt
function to determine the mean crystallite size [24]:Where Dhkl is the mean crystallite size, k=0.9 a constant shape
factor, λ the wavelength of the incident X-rays, Bobs the observed
full width at half maximum of the considered peak, Bstd =0.06 the
instrumental contribution to the full width at half maximum, and θ
the value in radian of the diffracted angle.