Biomedical Engineering Reference
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corresponding to octahedral Al sites (Al
VI
) and the other at 37.36 ppm which corresponds to
pentahedral Al sites (Al
V
). The results obtained for
31
P MAS-NMR and
27
Al MAS-NMR are
similar to those previously reported by different authors [14, 22, 25-28, 31].
Figure 1.
The XRD patterns of: (a) β-TCP powder and (b) α-Al
2
O
3
powder
Figure 2.
The
31
P MAS-NMR spectra of: (a) β-TCP and the
27
Al MAS-NMR spectra of: (b) α-Al
2
O
3
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