研究生: |
曾之藩 Zhi-fan Zeng |
---|---|
論文名稱: |
氮化鉻銅奈米複合薄膜之耐蝕、抗菌與熱處理性質 The corrosion resistance, antibacterial and annealing properties of Cr-Cu-N nanocomposites thin films |
指導教授: |
王朝正
Chaur-jeng Wang |
口試委員: |
李志偉
Jyh-wei Lee 周賢鎧 Shyan-kay Jou |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2008 |
畢業學年度: | 96 |
語文別: | 中文 |
論文頁數: | 100 |
中文關鍵詞: | 脈衝直流磁控濺鍍 、腐蝕 、抗菌 、退火熱處理 、Cr-Cu-N奈米複合薄膜 |
外文關鍵詞: | Cr-Cu-N nanocomposite thin films, magnetron sputtering pulsed DC reactive, corrosion, antibacterial, annealing |
相關次數: | 點閱:199 下載:3 |
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摘要
氮化鉻薄膜具有高硬度、較佳耐磨耗性與抗腐蝕能力,因此已在
模具產業中廣泛被使用;而在氮化鉻薄膜中加入適量的銅元素又可以
有效提高薄膜之機械性質。本研究採用反應式雙極非對稱脈衝直流磁
控濺鍍法沉積含銅量範圍自1.6 at.%到24.1 at.%之Cr-Cu-N 奈米複合
薄膜,並分別進行機械性質測試、氯化鈉水溶液中之抗腐蝕性、抑制
大腸桿菌能力及退火熱處理之性質的研究。Cr-Cu-N薄膜在硬度分析
中,可發現到含銅量15.3at.%時,其硬度值可達到最高值。抑菌實驗
發現薄膜消滅大腸桿菌的能力隨著銅含量的增加而提高,主要是由於
足夠多的Cu離子釋出所致。Cr-Cu-N薄膜在NaCl水溶液中因大量的銅
造成薄膜局部的腐蝕,隨著薄膜中銅含量增加其抗腐蝕性會明顯的降
低。Cr-Cu-N薄膜經退火熱處理後,其表面會有氧化生成物的產生,
生成物與其薄膜中的含銅量及退火的溫度有所關,薄膜硬度值也會受
到銅含量以及退火溫度的影響而變化。
The CrN coating had high hardness, low scratch coefficient and
good antibacterial properties. Therefore, the CrN coatings have been used
widely in the molding industrial. The addition of Cu into the CrN thin
film will further improve the mechanical properties of coating effectively.
In this work, the Cr-Cu-N nanocomposite thin films with Cu content
ranging from 1.6 to 24.1 at.% have been deposited by a bipolar
asymmetric pulsed DC reactive magnetron sputtering system. The
mechanical properties, corrosion behavior and antibacterial test of
Cr-Cu-N thin films with different Cu content were investigated. A
combination of high hardness for the Cr-Cu-N coating containing 15.2
at.%. It was observed that the antibacterial rate increased with the
increasing Cu content in the coating, which was due to sufficient amount
of Cu ions released. The corrosion resistance of Cr-Cu-N thin films is
decreased as the Cu content increased in the NaCl aqueous solution. The
copper oxide is produced on the surface of thin film after annealed. The
hardness is also effected with different Cu contain and annealing
temperature after annealed
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