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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43528完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 張所鋐(Shuo-Hung Chang) | |
| dc.contributor.author | Po-Yu Chi | en |
| dc.contributor.author | 紀柏伃 | zh_TW |
| dc.date.accessioned | 2021-06-15T02:22:54Z | - |
| dc.date.available | 2011-08-19 | |
| dc.date.copyright | 2009-08-19 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-08-18 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43528 | - |
| dc.description.abstract | 奈米碳管是近幾年來引起話題的新興材料，尤其是鍵結上的特殊結構與極小的尺寸都使奈米碳管在電磁與機械性質更引人注目。填鐵奈米碳管叢是在成長碳管同時填入鐵奈米線於碳管中空處，由於過度元素(鐵、鈷、鎳)具軟磁性，因而更加彰顯材料之磁性能；然而，卻鮮少文獻針對填鐵奈米碳管叢之機械性質做研究，本研究中以化學氣相沉積法製備填鐵奈米碳管叢，並利用奈米壓痕技術量測填鐵碳管叢之機械性質，探討填鐵率與機械性質之間的關係。
首先，探討填鐵奈米碳管叢之成長溫度對碳管叢高度的影響，以及外加碳源對碳管叢高度的影響。固定填鐵來源 二茂鐵的用量，改變碳管成長速率就能改變填鐵的比例。在穿透式顯微鏡下觀測填鐵率後，以奈米壓痕測試不同填鐵率之填鐵碳管叢的機械性質。 實驗結果發現以成長溫度增加與外加碳源濃度提高都能增加碳管高度，外加碳源可突破單用二茂鐵成長填鐵碳管叢之高度限制；另一方面，奈米壓痕試驗的結果顯示，填鐵碳管叢之機械性質與填鐵率相關且呈現指數增加的關係，當填鐵率由增加至48.1%，彈性模數由4.9增為71.8 MPa、硬度由0.534增加為2.044 MPa。 | zh_TW |
| dc.description.abstract | Carbon nanotubes arouse a lot of interests in the field of technology. Based on the atomic structure and its tiny size, amazing electromagnetic and mechanical properties have been predicted and proved. The magnetic behavior is enhanced by means of filling iron nanowire into the hollow center of nanotube, which is as grown iron-filled carbon nanotube turfs. Besides, mechanical property of iron filled carbon nano turfs is barely discussed in related research. In this study, we aims to synthesis iron-filled carbon nanotube turfs by chemical vapor deposition and then measure the mechanical property by nanoindentation. And also, relation between mechanical property and iron filling ratio is discussed in this research.
The growth parameters, temperature of growth and concentration of additional carbon source, are controlled first to investigate the relation to height of iron filled carbon nanotube turfs. With the changes on height of carbon nanotube turfs, the iron filling ratio are also altered. The iron filling ratio and diameters of carbon nanotube is observed by transmission electron microscope and then mechanical property of each sample is measured by nanoindentation. The results showed increasing growth temperature and concentration of additional carbon source would raise up the height of iron filled carbon nanotube turfs. When providing additional carbon source, the height limit of iron filled carbon nanotube turfs could be break through. On the other hand, the results of nanoindentation exhibit dependent relation of between mechanical property and iron filling ratio. The mechanical property would have exponential growth by increasing iron filling ratio. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T02:22:54Z (GMT). No. of bitstreams: 1 ntu-98-R96522612-1.pdf: 10585646 bytes, checksum: 06fee3a2e26c096bf3b69df3c3e15d3f (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | 摘要 i
Abstract ii 致謝 iv 目錄 v 圖目錄 vii 表目錄 x 第1章 緒論 1 1.1 前言 1 1.2 研究動機 2 第2章 文獻回顧 3 2.1 奈米碳管結構 3 2.2 奈米碳管製備 5 2.3 填鐵奈米碳管叢 6 2.4 奈米碳管彈性模數 8 2.4.1 奈米碳管彈性模數測定 8 2.4.2 以壓印方法測定奈米碳管叢彈性模數 11 2.5 奈米壓痕技術 14 2.5.1 基礎理論 14 2.5.2 誤差原因 19 第3章 實驗架構與設備 25 3.1 實驗流程 25 3.2 試片製程 26 3.3 化學氣相沉積法成長填鐵碳管叢 28 3.4 奈米壓痕硬度量測儀 34 3.5 觀察及量測顯微鏡(AFM、SEM、TEM) 36 第4章 結果與討論 41 4.1 填鐵碳管叢成長參數 41 4.1.1 溫度對成長高度之影響 41 4.1.2 碳源對成長高度之影響 44 4.1.3 填鐵率與碳管管徑之關係 47 4.1.4 碳管叢表面粗糙度 52 4.2 填鐵碳管叢機械性質 53 4.3 結果討論 58 第5章 結論與未來展望 63 5.1 結論 63 5.2 未來展望 64 參考文獻 65 | |
| dc.language.iso | zh-TW | |
| dc.subject | 填鐵奈 | zh_TW |
| dc.subject | 米碳管叢 | zh_TW |
| dc.subject | 填鐵率 | zh_TW |
| dc.subject | 米壓痕試驗 | zh_TW |
| dc.subject | 機械性質 | zh_TW |
| dc.subject | Nanoindentation | en |
| dc.subject | Iron-filled Carbon nanotube turfs | en |
| dc.subject | Mechanical property | en |
| dc.subject | iron filling ratio | en |
| dc.title | 以奈米壓痕法量測填鐵奈米碳管叢之機械性質 | zh_TW |
| dc.title | Mechanical Property Measurement of Iron-filled Carbon Nanotube Turfs by Nanoindentation | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 張家歐(Chia-Ou Chang),楊燿州(Yao-Joe Yang) | |
| dc.subject.keyword | 填鐵奈,米碳管叢,填鐵率,奈,米壓痕試驗,機械性質, | zh_TW |
| dc.subject.keyword | Iron-filled Carbon nanotube turfs,iron filling ratio,Nanoindentation,Mechanical property, | en |
| dc.relation.page | 68 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2009-08-18 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
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