| 티타늄분말의 표면에 석출된 생체모방 아파타이트 |
| 김종희, 심영욱, 양태영, 윤석영, 박홍채 |
| 부산대학교 재료공학부 |
| Biomimetic Apatite Precipitated on the Surface of Titanium Powder |
| Jong-Hee Kim, Young-Uk Sim, Tae-Young Yang, Seog-Young Yoon, Hong-Chae Park |
| School of Materials Science and Engineering, Pusan National University |
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| ABSTRACT |
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Biomimetic whisker-like apatite was formed on thermally and NaOH-treated titanium powder in a simulated body fluid (SBF). In the early process of the SBF immersion, the surface structure of the titanium powder was loosened, possibly due to the dissolution of $Na^+$ ions on the surface of the titanium powder into SBF. When immersed for 7 days in SBF, fine precipitates appeared on the titanium surfaces; the coating layer (<200 nm in thickness) consisted of nanostructured, amorphous whisker-like and particulate phase, observed by TEM. With the extension of the immersion time to 16 days, the chrysanthemum flower type morphology of carbonated hydroxyapatite with a nanocrystallinity was developed on the surface of the titanium powder. |
| Key words:
Biomimetic apatite coatings, Titanium powder, Simulated body fluid, Whisker-like nanostructured crystals |
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