Preparation of hydroxyapatite lathlike particles using high-speed dispersing equipment

Hydroxyapatite lathlike monocrystalline particles were prepared using high- energy dispersing equipment in combination with a pH shock-wave method. The Ca/P atomic ratios were very close to theoretical, and the acidic group co ntent was very small. The particles were nonporous, with anisotropic crysta l growth and average grain size similar to 140-1300 nm in length, similar t o 20-100 nm in width, and similar to 10-40 nm in thickness. The high-speed dispersing equipment created the proper hydrodynamic conditions for lathlik e particle growth in the [001] direction, The hydroxyapatite particles form ed aggregates of 1-5 mum average diameter.