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研究生：	黃郁庭 Huang, Yu-Ting
論文名稱：	以化學置換反應製備金屬銅、鎳及其合金之研究 A Novel Method to Prepare Cu, Ni and Cu-Ni Alloys by Chemical Replacement Reaction
指導教授：	李文熙 Lee, Wen-Hsi
學位類別：	碩士 Master
系所名稱：	電機資訊學院 - 電機工程學系 Department of Electrical Engineering
論文出版年：	2017
畢業學年度：	105
語文別：	英文
論文頁數：	46
中文關鍵詞：	化學置換法、鋁、銅、鎳、銅鎳合金
外文關鍵詞：	Chemical replacement reaction, Al, Cu, Ni, Cu-Ni alloy
相關次數：	點閱：92 下載：6
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銅鎳合金系統擁有優異的抗腐蝕能力，被廣泛的應用於海洋工程中；此外，在部分的核電工程中也可以發現它的蹤跡。當銅鎳比接近1時，銅鎳合金會有最小的電阻溫度係數(Temperature Coefficient of Resistance, TCR)，因此近幾年亦被積極的作為薄膜電阻元件的材料。
傳統的合金製備方法需要在極高的溫度下將金屬熔煉後混和，其成本非常的高。本研究則利用燒結後的鋁膏作為化學置換的反應層，以沉積金屬銅與鎳的薄膜，最後以退火程序使銅層與鎳層相互擴散，形成銅鎳合金相，以期降低製程成本。從實驗中我們可以發現，當銅置換發生在40℃並浸泡15分鐘到30分鐘之間，配合鎳置換在80℃並浸泡15分鐘時，會有最接近1的銅鎳比出現。另外，我們亦能從退火處理後的試片觀察到銅層與鎳層相互擴散的情形，且其TCR均有顯著的下降。

Copper-Nickel alloys system (Cu-Ni alloys system) performs a great ability in corrosion, and is applied widely in marine engineering; moreover, it is used in part of nuclear power engineering. When the composition ratio of Cu and Ni in Cu-Ni alloys system is around 1:1, there is a lowest TCR. As a result, Cu-Ni alloy has been a selected material used in resistive components.
Traditional method in preparing alloys needs an extremely high temperature for melting and mixing the metals that costs expensively. Therefore, we used the sintered aluminum (Al) paste as a chemical replacement layer to deposit a Cu layer and a Ni layer. After an annealing treatment, Cu atoms and Ni atoms would diffuse to each other to form Cu-Ni alloy. By this method, we might reduce the cost in fabricating the alloys.
The results in this study showed that when Cu substituted for Al where the specimen was immersed between 15 minutes at 40℃, and Ni replaced Al by soaking the specimen for 15 minutes at 80℃, the composition ratio of Cu and Ni would be approximately 1:1. Furthermore, after an annealing treatment, we could observe the diffusion of Cu atoms and Ni atoms by energy-dispersive spectrometer (EDS) and X-ray diffractometer (XRD); also, we would see a dramatic decrease of TCR in the specimen.

摘要....................................................I
Abstract...............................................II
誌謝..................................................III
List of Table..........................................VI
List of Figure........................................VII
Chapter 1 Introduction..................................1
Chapter 2 Theory........................................3
2-1 Chemical Replacement Reaction.......................3
2-2 Alloys..............................................5
2-2-1 Solid Solutions...................................5
2-2-2 Cu-Ni Alloys......................................6
2-3 Diffusion...........................................8
Chapter 3 Experiment Scheme............................10
3-1 Experiment Procedures and Methods..................10
3-1-1 Experiment Procedures............................10
3-1-2 Experiment Methods...............................11
3-2 Experimental Tools.................................14
3-2-1 Screen Printer and Mesh Screen...................14
3-2-2 Water Bath.......................................15
3-2-3 Fast Sintering Furnace...........................15
3-3 Measuring Instruments and Analysis Equipment.......16
3-3-1 Modified Four-Point Probe........................16
3-3-2 Scanning Electron Microscope.....................17
3-3-3 X-ray Diffractometer.............................20
3-3-4 Inductively Coupled Plasma-Mass Spectrometer.....21
Chapter 4 Result and Discussion........................22
4-1 Copper (Cu)........................................22
4-1-1 Solution Analysis................................22
4-1-2 Structure Analysis...............................23
4-1-3 Electrical Property Measurement..................30
4-2 Nickel (Ni)........................................32
4-2-1 Solution Analysis................................32
4-2-2 Structure Analysis...............................33
4-2-3 Electrical Property Measurement..................35
4-3 Copper-Nickel Alloys (Cu-Ni Alloys)................36
4-3-1 Structure and Element Analysis...................36
4-3-2 Electrical Property Measurement..................41
Chapter 5 Conclusion and Future Work...................42
Reference..............................................44
                                    

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校內：2022-08-31公開
校外：2022-08-31公開

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