Abstract: Hydroxyapatite (HAP) ceramic powder was prepared via
wet chemical precipitation method through stepwise addition of 0.1N calcium
nitrate tetrahydrate to 0.06N of dihydrogen ammonium
phosphate at pH over 11, with digestion at
different times; 18, 20, 22, 28 and 36 hours, and firing for 90 minutes at 1050°C.
The obtained powder was investigated using FT-IR, XRD and DCS. 20 hrs of
digestion time was considered as the optimum condition for preparation of
relatively higher content of pure hydroxyapatite ceramic powder.
Keywords and phrases: digestion time, nano hydroxyapatite ceramic.
