Synthesis of Calcium Hydroxyapatite‐Tricalcium Phosphate (HA‐TCP) Composite Bioceramic Powders and Their Sintering Behavior

Composite (biphasic) mixtures of two of the most important inorganic phases of synthetic bone applications‐namely, calcium hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 (HA)) and tricalcium phosphate (Ca 3 (PO 4 ) 2 (TCP))‐were prepared as submicrometer‐sized, chemically homogeneous, and high‐purity ceramic powders by using a novel, one‐step chemical precipitation technique. Starting materials of calcium nitrate tetrahydrate and diammonium hydrogen...