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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 張所鋐(Shuo-Hung Chang) | |
| dc.contributor.author | Jia-Ni Yu | en |
| dc.contributor.author | 余佳霓 | zh_TW |
| dc.date.accessioned | 2021-06-16T10:36:09Z | - |
| dc.date.available | 2018-08-26 | |
| dc.date.copyright | 2013-08-26 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-08-13 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60914 | - |
| dc.description.abstract | 填鐵奈米碳管叢由於製備方式簡便，又因為其中填有鐵奈米線，有優異的電磁性能，近年來是備受矚目的材料。然而目前針對填鐵奈米碳管叢的研究之中，主要著重於填鐵奈米碳管叢的電磁性質，關於其機械性質的文獻較為少見。本研究以化學氣相沉積法製備填鐵奈米碳管叢，並利用奈米壓痕法與實驗法量測填鐵奈米碳管叢的機械性質，討論其分層結構以及受熱情形對機械性質的影響。
實驗結果發現，推入二茂鐵催化劑的數量不但可以控制填鐵奈米碳管叢的層數及厚度，層數越多的碳管叢有越好的機械性質。五層填鐵奈米碳管叢的彈性模數是單層填鐵奈米叢的5.5倍，表面硬度更是單層填鐵奈米碳管叢的28.5倍。另外，比較單層填鐵奈米碳管叢受高溫處理後對其機械性質的影響，其中於空氣中加熱單層填鐵奈米碳管叢至200°C，表層硬度會提升到原來的2.5倍，而於氬氣中加熱，其機械性質較無明顯變化。 | zh_TW |
| dc.description.abstract | Measurement of the compressive elastic modulus of iron-filled carbon nanotube (CNT) forests is evaluated with two different methods. The first method uses a nanoindentation system to indent iron-filled CNT forests grown on rigid silicon substrates. Reduced modulus and hardness of iron-filled CNT forests can be measured by nanoindentation. The second experimental method uses a force gauge, a 2-axial micro-stage, and SEM to observe the behavior of iron-filled CNT forests under uniform compressive loading. Additionally, the stress vs. strain data of iron-filled CNT forests can be calculated.
Both methods were performed for iron-filled CNTs with 1, 3, and 5 layers, which were synthesized by controlling adding how many pinches of ferrocene. Using nanoindentation measure system, the hardness of 5-layer iron-filled CNT surface is 8.154 MPa, which is 28.5 times of single-layer iron-filled CNTs. Also, Young’s modulus of single-layer iron-filled CNTs measured by the second method were only 73 KPa, but Young’s modulus of 5-layer iron-filled CNTs is 404.41 KPa. Interestingly, the more layers of iron-filled CNTs, the higher hardness and Young’s modulus were found. Besides, using both two experimental methods to measure the mechanical properties of single-layer iron-filled CNT forests treated with a high temperature treatment, no significant distinction can be found between the pre-treatment sample and the sample after high temperature treatment. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T10:36:09Z (GMT). No. of bitstreams: 1 ntu-102-R00522606-1.pdf: 5347956 bytes, checksum: 116879b52a0b0fcab19078d22aa61d7d (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 致謝 i
摘要 ii Abstract iii 目錄 iv 圖目錄 vi 表目錄 xi 第一章 緒論 1 1.1 前言 1 1.2 研究動機 2 第二章 文獻回顧 3 2.1 奈米碳管結構 3 2.2 奈米碳管叢製備 7 2.3 填鐵奈米碳管叢 11 2.3.1 填鐵奈米碳管叢成長方法 11 2.3.2 填鐵奈米碳管叢成長機制 12 2.4 奈米碳管彈性模數測定 15 2.5 奈米碳管叢在高溫環境下之機械性質 19 2.6 奈米碳管叢經高溫處理對其機械性質的影響 22 第三章 實驗架構與設備 26 3.1 試片的準備 27 3.2 化學氣相沉積法成長填鐵奈米碳管叢 28 3.3 顯微分析 30 3.4 實驗架構 33 3.4.1 奈米壓痕量測儀量測碳管叢單點機械性質 33 3.4.2 力感測器與微動平台操控量測碳管叢大面積機械性質 39 第四章 實驗結果與討論 41 4.1 不同層數之填鐵奈米碳管叢機械性質 41 4.1.1 奈米壓痕法做填鐵奈米碳管叢之點狀量測 43 4.1.2 以拉力感測器做填鐵奈米碳管叢之大面積量測 46 4.1.3 與分層之未填鐵奈米碳管叢比較 59 4.2 高溫對單層填鐵奈米碳管叢之機械性質影響 66 4.2.1 以奈米壓痕法量測一般室內環境加熱填鐵奈米碳管叢 66 4.2.2 以奈米壓痕法量測通氬氣加熱填鐵奈米碳管叢 69 4.2.3 以拉力感測器量測加熱後之單層填鐵奈米碳管叢 76 第五章 結論與未來展望 84 5.1 結論 84 5.2 未來展望 86 | |
| dc.language.iso | zh-TW | |
| dc.title | 以實驗方法量測填鐵奈米碳管叢之機械性質 | zh_TW |
| dc.title | Experimental Measurements of Mechanical Properties of Iron-Filled Carbon Nanotube Forests | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 蘇志中(Chih-Chung Su) | |
| dc.contributor.oralexamcommittee | 施文彬(Wen-Pin Shih) | |
| dc.subject.keyword | 填鐵奈米碳管叢,機械性質,奈米壓痕法,熱處理, | zh_TW |
| dc.subject.keyword | iron-filled carbon nanotube,mechanical property,nanoindentation,high temperature treatment, | en |
| dc.relation.page | 91 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-08-14 | |
| 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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