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研究生:吳佳儒
研究生(外文):Jia-Ru Wu
論文名稱:應用田口方法於固態氧化物燃料電池電解質電泳製程最佳化之研究
論文名稱(外文):Application of Taguchi Method in the optimization of electrophoretic process for the fabrication of SOFC electrolyte film
指導教授:余炳盛余炳盛引用關係
口試委員:楊永欽邱善得王玉瑞
口試日期:2013-06-26
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:資源工程研究所
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2013
畢業學年度:101
語文別:中文
論文頁數:77
中文關鍵詞:固態氧化物燃料電池電泳沉積法電解質田口法
外文關鍵詞:SOFCElectrophoretic depositionElectrolyteTaguchi method
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固態氧化物燃料電池是一種將化學能轉換為電能的能源裝置。因其具有高能源轉換效率、運作安靜及低污染等優點,因此被認為最具發展潛力的新世代能源系統。然而因工作溫度過高使得製造成本增加,只能應用於特殊用途而尚未商業化。而要降低其工作溫度,解決辦法之一為將電解質層薄膜化。
本研究利用電泳沉積法製備固態氧化物燃料電池之電解質薄膜,在其製程上選擇四個控制因子(電壓大小、電極間距、固液比、碘添加量) ,每個因子皆為三水準,電解質薄膜目標品質設定為最小孔隙率及厚度變異。經由田口方法S/N比分析,得到目標品質一組最佳製程參數A1 B3 C3 D2,其電解質薄膜平均孔隙率為4.86%,平均厚度變異為2.71μm。


Solid oxide fuel cells (SOFCs) are energy conversion devices that electrochemically convert the chemical energy of a fuel into electrical energy. They have been widely accepted as promising candidates for new generation power systems due to their high energy-conversion efficiency, quiet operation and low or zero emission of pollutants. However, the development of SOFCs for efficient power generation has still failed to reach a wide-spread commercial viability due to the high operating temperature and thus results in high cost. One way to reduce the operating temperature is fabricating thin electrolyte film.
This study is using electrophoretic deposition method to fabricate SOFC electrolyte film, selected the four control factors (voltage, the distance of two electrodes, solid-to-solution ratio, the amount of addition I2), each factor are the three levels, electrolyte film''s quality goals are set to the smallest porosity and the smallest variation of thickness. By Taguchi method by S / N ratio analysis, can find a group of best quality goals parameter A1 B3 C3 D2, the average porosity of electrolyte film is 4.86%, the average thickness- variation of electrolyte film is 2.71μm.


摘 要 I
ABSTRACT II
誌 謝 III
目 錄 IV
表目錄 VII
圖目錄 IX
第一章 緒論 1
1.1 前言 1
1.2 固態氧化物燃料電池簡介 3
1.3 研究動機及目的 4
1.4 預期工作結果 5
第二章 理論基礎與文獻回顧 6
2.1 SOFC核心元件-陶瓷電解質簡介 6
2.1.1 氧化铈基電解質 8
2.1.2 陶瓷電解質薄膜之製備方法 10
2.2 電泳沉積法 12
2.2.1 膠體 12
2.2.2 電泳沉積之原理 12
2.2.3 膠體粒子電荷來源 16
2.2.4 電泳文獻回顧 16
2.3 燒結理論 17
2.3.1 燒結過程 18
2.3.2 燒結驅動力 19
2.4 田口方法 20
2.4.1 實驗設計 21
2.4.2 田口方法之基本概念 22
2.4.3 直交陣列表 23
2.4.4 品質特性與信號雜訊比 23
第三章 實驗方法與步驟 25
3.1 實驗流程 25
3.2 藥品規格 25
3.2.1 電泳基板(NiO- GDC)之製備 26
3.2.2 電泳懸浮液之配製 28
3.3 電泳槽之設置 28
3.4 電泳之參數規劃 29
3.5 材料特性分析 31
3.5.1 粒徑分析 31
3.5.2 結晶相鑑定分析 32
3.5.3 掃描式電子顯微鏡分析 33
3.5.4 電解質燒結密度分析 33
第四章 結果與討論 35
4.1 陽極基板 35
4.2 電解質粉體及其懸浮液 37
4.3 電泳過程 41
4.3.1 電泳液之溫度變化 41
4.3.2 電泳液之電流變化 42
4.3.3 電泳試片之再現性 45
4.4 電解質緻密度及厚度 45
4.4.1 孔隙率分析 45
4.4.2 電解質緻密度-田口分析 46
4.4.3 電解質厚度-田口分析 48
4.5 最佳參數之探討 51
4.5.1 孔隙率及厚度之最佳參數 51
4.5.2 製程最佳參數 52
4.5.3 最佳參數預測分析 54
4.6 最佳參數之確認實驗 55
第五章 結論 59
參考文獻 60
附錄 64
A電泳半電池試片共燒後之表面SEM分析(倍率5000) 64
B電泳半電池試片共燒後之斷面SEM分析(倍率5000) 65
C電泳最佳參數試片之斷面SEM分析(倍率5000) 74
D電泳過程懸浮液之顏色變化 75
E沉降試驗 77



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