The Obtaining of Porous Strong Ceramics from Nano-Hydroxyapatite

Read more The present paper describes the possibility of strong porous ceramics preparation from hydroxyapatite nanopowders. The as-dried hydroxyapatite nanopowders were uniaxially compacted and sintered. The sintered ceramics and nanopowders were analyzed by methods of transition electron microscopy, scanning electron microscopy and X-ray phase diffraction. The ceramics gas-penetration and hardness were measured. The methods of pore control were tested. The ceramics samples with open equally dispersed pores were received; the pores and grain size is about micron and less. The results are useful for making medical implantate and membrane ceramics with controlled pores size.

Keywords:
hydroxyapatite, ceramics, nanopowder, microhardness, sintering, gas permeability, porosity.
УДК 541.64

The Obtaining of Porous Strong Ceramics from Nano-Hydroxyapatite