School of Engineering and Science - Jacobs University

800
111
Intensity, a.u.
400
200
220 311
0
2Θ
40 60 80
Fig. 4-2. XRD spectrum of B sample.
600
111
Intensity, a.u.
400
200
200
220
0
40 50 60 70
2Θ
Fig. 4-3. XRD spectrum of D sample.
As can be seen from XRD spectra of sample B (Fig. 4-2) and D (Fig. 4-3) they both
have dominant peak at ≈ 39 °, which corresponds to the (111) crystal face, as well as
peak at 66 °, which corresponds to (220) crystal phase. The peak at 46 ° (corresponding
to the (220) crystal phase) is clearly seen in the spectra of D sample, however it is
present as poorly observable shoulder in the spectra of B sample, probable due to the
widening of the dominant peak at 39 ° and their overlapping. The assignment of the
peaks was based on the work of Davey [176]. The quantitative value of a peak
33