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

Figure 2

Visual observation of bone ash showing the effect of the recalcination structure: (a) bone ash calcined at 650°C for 6 h and (b) bone ash recalcined at 950°C for another 6 h.

(a)

(b)