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Preparation of hydroxyapatite/$TiO_2$ biocomposite powders by wet chemical method  

정항철 (조선대학교 신소재공학과)
이종국 (조선대학교 신소재공학과)
Abstract
In this work, HA/$TiO_2$ biocomposite to get high mechanical properties with biocompatibility were prepared. HA/$TiO_2$ biocomposite powders were prepared by mixing $TiO_2$ and HA powders which were synthesized through sol-gel, precipitation and hydrothermal methods. The mixing ratio was fixed at 1:1 ratio (HA/$TiO_2$, wt%). HA/$TiO_2$ biocomposite powders showed different microstructures depending on their particle size and shape. The smaller particles were coated on the surface of larger particles, whereas they were well mixed and dispersed when both $TiO_2$ and HA were nanocrystallites. HA/$TiO_2$ biocomposite powders with homogeneous microstructure showed high sintered density and good mechanical properties.
Keywords
Biomaterials; Composite powder; Hydrothermal; Hydroxyapatite; $TiO_2$;
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