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標題: 電解沉積氧化鋯陶瓷膜於黃銅合金之研究
Electrolytic Deposition of ZrO2 on Brass Alloy
作者: 洪逸屏
Hung, Yi-Ping
關鍵字: Electrolytic Deposition;電解沉積;ZrO2;Brass Alloy;氧化鋯陶瓷膜;黃銅合金
出版社: 材料科學與工程學系所
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The electrolytic deposition of ZrO2 coatings on brass alloy was conducted in an aqueous solution of ZrO(NO3)2. The better condition of ZrO2 coatings on brass alloy was determined by controlling different electrochemical parameter and different sintering conditions; and its characterization was conducted by using Potentiostat spectroscopy, SEM/EDS, XRD and scratch testing.
The X-ray diffraction(XRD) diagrams showed that the Zr(OH)4 gel was transformed into monoclinic at 400℃ of annealing. The results of this experimentation indicate that there are most influence with anticorrosive of the thin film surface condition. However, the mold cracks were also increasing with increasing thickness and phase transformed of the thin film was reducing the corrosion resistance. The results of this experimentation indicate, specimens deposited ZrO2 for 300 sec annealing at 350℃ showed the better corrosion resistance.
By referring to the immerse testing and the liberation of metal ion analysis, through electrolytic deposition of ZrO2 coating on brass alloy, it reduce the liberation of lead ion by 50%, also reduce others liberation of metal ion. Besides, the results of scratch testing also indicate the adhesive of the coating on the brass alloys are greater than the yield-strength of the alloy.

其他識別: U0005-0607200715065400
Appears in Collections:材料科學與工程學系

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