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研究生:翁林樑
研究生(外文):Liang WengLin
論文名稱:以硝酸鋁水溶液混拌油酸製備奈米級α-Al2O3粉末之研究
論文名稱(外文):The research on nano α-Al2O3 powders prepared by mixing aqueous aluminum nitrate solution and oleic acid
指導教授:溫紹炳
指導教授(外文):Shaw-Bing Wen
學位類別:碩士
校院名稱:國立成功大學
系所名稱:資源工程學系碩博士班
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:2005
畢業學年度:93
語文別:中文
論文頁數:70
中文關鍵詞:乳膠粉末氧化鋁
外文關鍵詞:nanoaluminumemulsion
相關次數:
  • 被引用被引用:2
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  • 下載下載:30
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本研究以不同比例之界面活性劑油酸與銷酸鋁水溶液在高轉速混拌,製成油中水滴型乳膠,再以盤型加熱器加熱至180℃除去水分後,得到黑褐色的氧化鋁前導物和油酸混合物,以5℃/min的速度升溫至650℃持溫20分鐘,再以10℃/min的速度升溫至1000℃、1050℃、1100℃持溫2小時煅燒,冷卻之後得到α-Al2O3粉末。以X-光繞射分析的結果顯示在乳膠分散製備成前導物的過程中可能有水鋁石(diaspore)的形成。將所得到的α-Al2O3粉末作比表面積粒徑分析,發現不同油酸與硝酸鋁水溶液比例在1000℃持溫2小時煅燒所得到的α-Al2O3粉末其比表面積粒徑都小於100nm,但隨著水溶液含量的增加,其表面積粒徑隨著煅燒溫度的增加的速度也越快。用SEM觀察所生成之α-Al2O3顆粒型態及粒徑大小,發現不同油酸與硝酸鋁水溶液比例在1000℃持溫2小時煅燒所得到的α-Al2O3粉末其粒徑約在40∼60nm之間。由TEM的照片可觀察到油酸與硝酸鋁水溶液比例為5:5時的顆粒大小最為均勻,且呈圓球狀,其粒徑大小約為50nm左右。
This research prepared nano α-Al2O3 powders by mixing aqueous aluminum nitrate solutions and oleic acid. Water-in-oil (w/o) type emulsions were obtained by mixing different ratios of aqueous aluminum nitrate solutions and oleic acid with high speed stirring mixer. The emulsions were heated with plate heater at 180℃ to remove water in the mixture until got the dark brown alumina precursor. The precursors were calcined at the temperatures of 1000℃, 1050℃, 1100℃ for 2 h to form nano α-Al2O3 powders. These nano α-Al2O3 powders were identified by X-ray diffraction (XRD), specific surface area measurement (BET), scanning electron microscope (SEM) and transmissional electron microscope (TEM). The X-ray diffraction patterns revealed that diaspore (β-AlOOH) might be formed during dewatering process. The specific surface areas of α-Al2O3 powders calcined at 1000℃ for 2 h were in the range of 15.5∼21 m2/g and calculated particles size were between 71∼97 nm. As the content of aqueous aluminum nitrate solutions increased relative to oleic acid, the size of α-Al2O3 powders were enlarged as the calcination temperature increasing. The particles size of α-Al2O3 powders obtained from 1000℃ calcinations for 2 h with the ratios of aqueous aluminum nitrate solutions and oleic acid from 8:2 to 5:5 were ranging from 40 to 60 nm by SEM observation. The TEM photos indicated that as the ratio of aqueous aluminum nitrate solution and oleic acid was 5:5, the particle size distribution was uniform spherical shape and the average size was near 50 nm.
摘要 I
Abstract II
誌謝 III
總目錄 IV
表目錄 VII
圖目錄 VIII
第一章 緒論 1
1.1 前言 1
1.2 研究目的 7
1.3 前人研究 8
第二章 理論基礎 11
2.1 乳膠與微胞理論 11
2.1.1 混合之乳膠理論 11
2.1.2 膠體的吸附 14
2.1.3 膠體的分散 15
2.2 氧化鋁的前導物與結晶相 18
2.3 氧化鋁的結晶相 19
第三章 實驗方法與步驟 23
3.1 實驗材料與儀器 25
3.1.1 實驗材料 25
3.1.2 實驗設備 26
3.2 性質分析 28
3.3 實驗流程與步驟 32
3.3.1 氧化鋁前導物之製備 32
3.3.2 氧化鋁微粉的製造 32
第四章 結果與討論 34
4.1 氧化鋁前導物型態及熱分析結果 34
4.2 氧化鋁前導物高溫相分析 40
4.3 以乳膠分散法製備氧化鋁粉末之結果 42
4.3.1 不同油酸與硝酸鋁水溶液比例製備之α-Al2O3粉末結晶相及粒徑分析 42
4.3.2 不同油酸與硝酸鋁水溶液比例製備之α-Al2O3粉末粒徑分析 45
4.3.3 不同油酸與硝酸鋁水溶液比例製備之α-Al2O3粉末之掃瞄式電子顯微鏡影像分析 53
4.3.4 綜合討論 56
4.4 以乳膠分散法配合氣氛煅燒製備氧化鋁粉末之結果 58
4.5 綜合比較與討論 62
第五章 結論與建議 65
5.1 結論 65
5.2 建議 67
參考文獻 68
1.高濂、李蔚,“奈米陶瓷”,五南圖書出版股份有限公司 (2003),台北。
2.尹邦躍,“奈米時代”,五南圖書出版股份有限公司 (2002),台北。
3.汪建民主編,“陶瓷技術手冊(上)、(下)”,中華民國粉末冶金協會(1999),台北。
4.陳家榮,“Advanced Ceramic Powders and Nano Ceramic Powders”,第一屆海峽兩岸粉體製備科學與技術研討會 (2003),台南。
5.Y. Sarikaya and M. Akinc,“Preparation of Alumina Microshells by the Emulsion Evaporation Technique”, Ceramics International, 14, (1988), pp.239∼244.
6.I. Sevinc, Y. Sarikaya and M. Akinc, “Adsorption Characteristics of Alumina Powders Produced by Emulsion Technique”, Ceramics International, 17, (1991), pp.1∼4.
7.F. S. Yen and H. L. Wen, “Growth Characteristics of Boehmite-derived Ultrafine Theta and Alpha-alumina Particles during Phase Transformation”, Journal of Crystal Growth, 208, (2000), pp.696~708.
8.Y. Sarikaya, I. Sevinc and M. Akinc, “The effect of calcination temperature on some of the adsorptive properties of fine Alumina Powders obtained by emulsion evaporation technique”, Powder Technology, 116, (2001) , pp.109∼114.
9.Y. Sarikaya, T. Alemdaroglu and M. Onal“Determination of the shape, size and porosity of fine α- Al2O3 powders prepared by emulsion evaporation”, Journal of the European Ceramic Society, 22, (2002), pp.305∼309.
10.林志朋,“以油酸分散配合氣氛加熱製造奈米α相氧化鋁粉末之研究”,博士論文,國立成功大學資源工程學系 (2002)。
11.Chih-Peng Lin, Shaw-Bing Wen and Ting-Tai Lee, “Preparation of Nanometer Sized α-Alumina Powders by Calcining an Emulsion of Boehmite and Oleic Acid”, Journal of the American Ceramic Society, Vol. 85, No.1, (2002).
12.Chih-Peng Lin, Shaw-Bing Wen, “Variation of Boehmite and Oleic Acid Emulsion in the Calcining Process of Alumina Powders”, Journal of the American Ceramic Society, Vol.85, No.6, (2002).
13.謝沐辰,“以由酸分散氫氧化鋁膠製造α相氧化鋁粉末程序之研究”,碩士論文,國立成功大學資源工程學系 (2004)。
14.D. J. Shanefield, “Organic Additives and Ceramic Processing”, Kluwer Academic Publishers (1995).
15.M. Yoshikiyo,“Micelles Theoretical and Applied Aspects”, chapter1~4, Plenum Press New York (1992).
16.張有義,郭蘭生編譯,“膠體及界面化學入門”,高立圖書有限公司 (1999),台南。
17.趙承琛,“界面科學基礎”,復文書局 (1985),台北。
18.L. J. Warren,“Principles of Mineral Flotation”, Australasian Institute of Mining and Metallurgy (1984).
19.J. P. Robort and L. Bergstrom, “Surface and Colloid Chemistry in Advanced Ceramics Processing”, Marcel Dekker (1994).
20.W. H. Gitzen, “Alumina as a Ceramic Material”,The American Ceramic Society Publication, OH, 17. (1970)
21.H. C. Stumpf, A. S. Pussel, J. W. Newsome, C. M. Tucker, Ind. Eng. Chem., 42, 1398 (1950).
22.R. Tertian, D. Papee, J. Chem. Phys., 55, 341 (1958).
23.S. Rajendran, J. Mater. Sci., 29, 5664 (1994).
24.J. S. Wilson and Mcconnel J. D., “A Kinetic Study of the system γ-AlOOH”, J. Solid State Chemistry, 34, (1989), pp.315~322.
25.L. D. Hart, “Alumina Chemical : Science and Technology Handbook”, J. Am. Ceram. Soc, Inc. , Ohio (1990).
26.汪建民,“精密陶瓷科技”,工業技術研究院 (1987),新竹。
27.B. D. Cullity, “Elements of X-ray Diffraction”, 2nd Edition, Addision-Wesley Publishing Company Inc., London (1978).
28.K. Wefers and C. Misra, “Oxides and Hydroxides of Aluminum” Alcoa Technical Paper, NO.19, Alcoa Laboratories, Pittsburgh, PA, 1987.
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