Figure 4.
(a) XRD patterns of pellet samples of as-dried calcium phosphate powders with [Ca]/[P] = 1.50 sintered between 800 °C and 1200 °C for 4 h and (b) zoom on the 30–35° (2θ) area (○: HA, ■: NaCaPO4, ⋆: β-Ca3(PO4)2).
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