Hydroxyapatite Morphology Control by Using Hydrothermal Treatment
After hydrothermal treatment of tricalcium phosphate (TCP), calcium deficient hydroxyapatite (HA) with much amount of a-surface (h00) was obtained. It was considered that c-surface of HA had larger surface tension than that of a-surface, therefore HA crystals elongated along c-axis of <001> directions. By using hydrothermal treatment, difference of surface tension was affected crystal growth of HA. The adsorption property of HA will be controlled by designing of HA morphology, because different crystal surfaces have different properties.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
G. Kawachi et al., "Hydroxyapatite Morphology Control by Using Hydrothermal Treatment", Key Engineering Materials, Vols. 330-332, pp. 103-106, 2007