Figure 5.
XRD patterns of pellet samples of as-dried calcium phosphate powders with [Ca]/[P] = 1.50 sintered at (a) 1300 °C and (b) 1400 °C for 4 h (α: α-TCP, ■: NaCaPO4, ⋆: β-Ca3(PO4)2, ○: HA, ×: Ca2P2O7).
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