電化學處理之鈦鈮合金生物機械模擬分析

Biomechanical Research of TiNb Alloys with Electrochemical Treatment Using Finite Element Method

吳啟明(CHI-MING WU)

指導教授 ： 彭珮雯

臺北醫學大學/口腔醫學院/醫療器材產業碩士專班/碩士(2014年)

摘要

無資料

關鍵字

奈米壓痕 ； 原子力顯微鏡 ； 接觸角 ； 有限原分析

並列摘要

In the present study, atomic force microscopy, contact angle instrument and the nano-indentation were conducted to evaluate the effects of oxide layers on TiNb alloys with and wiout surface treatment (TiNb, A-TiNb and AC-TiNb). In addition, the biomechanical properties of TiNb, A-TiNb and AC-TiNb were evaluated by finite element (FE) computer simulations. The results revealed that the rough surface and wettability property of TiNb alloy could be obtained after surface treatments. Furthermore, the surface properties of TiNb, A-TiNb and AC-TiNb are all relative the surface treatments. The elastic modulus of AC-TiNb was reduced to be closed to that of bone tissue. The gradual mechanical properties existed on the TiNb treated samples. The phenomena that more stress shared by bone tissue with treated metallic screws were showed in FEM models. In conclusion, the oxide layers formed by anodization with cathodical pretreatment played an important role in enhancing the biocompatibility and biomechanical ability of TiNb alloys. These results demonstrated that new AC-TiNb alloys not only contain nontoxic constituents but have relatively surperior biomechanical capability as well.

並列關鍵字

Nano-indentation ； atomic fore microscopy ； contact angles and FEM

參考文獻

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