Figure 1.

(a) X-ray diffractograms of the samples obtained by synthesizing calcium phosphate for 60 min at 110°C using the microwave hydrothermal method (HTMO). The curves represent the samples without heat treatment, and calcined at 300°C, 500°C, and 700°C. HA (hydroxyapatite), OCP (octacalcium phosphate), and TCP (tricalcium phosphate). (b) X-ray diffractograms of the samples obtained by synthesizing calcium phosphate for 60 min at 130°C using the microwave hydrothermal method (HTMO). The curves represent the samples without heat treatment and calcined at 300°C, 500°C, and 700°C. HA (hydroxyapatite), OCP (octacalcium phosphate), and TCP (tricalcium phosphate).