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  5. 高硬度薄膜牙科鑽頭表面特性與骨組織靜態力學分析
 
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高硬度薄膜牙科鑽頭表面特性與骨組織靜態力學分析

Other Title
Study of surface characteristics and bone tissue static
mechanical on the dental drill of highly hardness film
Type
thesis
Date Issued
2013-12-22
Author(s)
吳政儀
Advisor
黃茂栓
Subjects
系所名稱:醫療器材產業碩士專班
Description
學位別:碩士
語文別:中文
指導教授:黃茂栓
共同指導教授:
口試委員:張雍敏;陳順隆
中文關鍵字:氮化處理、氮化鈦薄膜、靜態力學模擬、薄膜機械性質
Abstract
本研究針對牙科鑽頭使用壽命與生物相容性做有效提升為目標,
從以往文獻可以知道,有相當多工具使用氮化鈦(TiN)、氮化鋁(AlN)、
氮化鉻(CrN)等硬質薄膜材料提高耐用性。藉由氮化處理後之工件表
面可以得到高硬度、高熔點、高化學穩定性及低摩擦係數等特性,基
材則保持原有之韌性,且此類硬質薄膜材料已逐漸應用於生醫領域。
本研究使用CAD (Computer aided design) – SolidWork 將既有之牙科
鑽頭與改良設計過後之圖式輸入,再行利用CAE (Computer aided
engineering) – ANSYS 進行牙科鑽頭與骨組織間之靜態力學模擬,以
求最佳外型與尺寸設計。其後進行精密加工製得自行設計之牙科鑽頭,
並採用射頻磁控濺鍍技術、調整製程參數、披覆400 nm (T1)、1200 nm
(T2),1200 nm (T3)氮化鋁鈦薄膜於不銹鋼基材上,佐以OM、SEM、
AFM 進行表面型態觀察,Contact angle meter、Nano-Indenter 測得鍍
膜情況,同時利用有限元素ANSYS 進行牙科鑽頭、氮化鈦薄膜與骨
組織間之靜態力學、熱力學模擬,以求氮化鈦最佳披覆厚度,並探討
細胞毒性之反應。
URI
https://203.71.86.71/handle/123456789/56924

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