Extraction and Characterization of Novel Natural Hydroxyapatite Bioceramic by Thermal Decomposition of Waste Ostrich Bone

Figure 4

XRD patterns of (A) the raw ostrich bone powder, (B) the powder calcined at 650°C for 6 h, (C) the ash obtained after recalcination at 950°C for another 6 h, and (D) the HAp size control after the microemulsion technique.