Table 1 Crystal sizes were calculated for HA and α-TCP using the Scherrer equation by measuring the Full Width at Half Maximum (FWHM) for peaks positioned at ~25.8° and 22.8° (2θ).
Hydroxyapatite | ||||||
|---|---|---|---|---|---|---|
Sample | AD | 13 kV | 17 kV | 21 kV | 25 kV | 29 kV |
Position (°) (2θ) | 25.8 | 25.84 | 25.82 | 25.82 | 25.83 | — |
FWHM | 0.36 | 0.29 | 0.23 | 0.26 | 0.26 | — |
Crystal size (nm) | 35.3 | 50.6 | 80.7 | 62.2 | 62.2 | — |
α–tri-calcium phosphate | ||||||
Sample | AD | 13 kV | 17 kV | 21 kV | 25 kV | 29 kV |
Position (°) (2θ) | — | 22.82 | 22.85 | 22.84 | 22.8 | 22.82 |
FWHM | — | 0.26 | 0.28 | 0.28 | 0.4 | 0.34 |
Crystal size (nm) | — | 61.9 | 53.7 | 53.7 | 29.9 | 38.4 |
