本文旨在研製異向性鋁合金碳纖維奈米複材積層板與探討在不同環境溫度下的機械性質，積層板是由二層0.55 mm碳纖維/聚醚醚酮預浸布與三層0.5 mm 鋁合金所構成。在積層板製作過程中，首先在預浸布表面均勻塗佈SiO2奈米微粒，並依十字疊[0/90]s與類似均向疊[0/45/90/-45]兩種疊序堆疊；為了使鋁合金與預浸布產生良好黏結，鋁合金是以鉻酸陽極法進行表面處理，然後以修正隔膜成型法進行固化成型，最後完成製作過程。拉伸與疲勞測試是以MTS 810材料測試試驗機來進行，並以MTS 651環境控制箱來保持特定測試溫度，如RT、75°C、100°C、125°C與150°C。
在靜態拉伸測試中可以得到十字疊與類似均向疊奈米複材積層板的極限強度與縱向勁度等機械性質，並依所得的試驗數據結果，在該溫度下繪製應力應變關係圖；在疲勞測試中，所採用的負載形式為拉伸-拉伸，應力比為0.1，頻率為5Hz，而負載波型為正弦波型，並以負荷控制作為控制模式，最後將疲勞實驗所得數據在不同環境溫度參數下繪製成無因次化應力與疲勞振次關係圖；此外為了觀測試片破斷面，以使用掃瞄式電子顯微鏡來做觀察。
在綜合所有實驗結果後，可以獲致幾點結論：首先，在應變約為0.1%附近斜率發生了改變，此種現象使得依混合理論所計算出之縱向勁度理論值與拉伸實驗值呈現不小誤差；第二，鋁合金/十字疊試片抗疲勞性質比鋁合金/類似均向疊試片差；第三，兩種疊序的奈米複材積層板，其極限應力在環境溫度下150°C為最低；第四，鋁合金/類似均向疊試片在抵抗溫度效應的能力較優；最後，表面處理以採用鉻酸陽極法的奈米複材積層板試片，其機械性能優於化學蝕刻法。

The thesis is to fabricate Al/APC-2 hybrid nanocomposite laminates and investigate their mechanical properties at elevated temperature. The prepregs of Carbon /PEEK were stacked into cross-ply [0/90]s and quasi-isotropic [0/45/90/-45] laminates spread uniformly with nanoparticles SiO2. The sheet surface was treated by chromic acid anodic method to achieve perfectly bonding with matrix PEEK. The prepregs were sandwiched with the Al alloy sheets. The modified diaphragm curing process was adopted to produce Al/APC-2 hybrid nanocomposite laminates. The hybrid nanocomposite laminates were a five-layer composite with two 0.55 mm thick Carbon/PEEK layers sandwiched by three 0.5 mm thick 2024-T3 Aluminum alloy sheets. The MTS 810 material testing machine was used to conduct the tension and fatigue tests. In addition, the MTS 651 environmental chamber was installed to control and keep the specific testing temperature, which was room temperature, 75°C, 100°C, 125°C and 150°C.
The mechanical proper¬ties, such as ultimate tensile strength and longitudinal stiffness of hybrid cross-ply and quasi-isotropic nanocomposite laminates, were obtained from the static tensile test, and the stress-strain diagrams were plotted in the corresponding temperature. The constant stress amplitude tension-tension cyclic tests were carried out by using load-control mode at a sinusoidal loading with frequency of 5Hz and stress ratio R=0.1. The received fatigue data were plotted in normalized S-N curves at variously elevated temperature. In order to observe the failure mechanism of samples, the scanning electron microscope was used.
From the summarized results, some conclusions were made. First, the slope changed at strain=0.1% in the stress-strain diagram, and led to a noticeable error between the experimental data and ones calculated according to Rule of Mixtures. Second, the Al/APC-2 cross-ply nanocomposite laminates were less resistant to fatigue than quasi-isotropic. Third, the ultimate tensile strength of both hybrid composite laminates was the lowest at 150°C. Fourth, the Al/APC-2 quasi-isotropic nanocomposite laminates were more resistant to the temperature effect. Finally, The mechanical proper¬ties were better for the surface treated by chromic acid anodic method than chemical etching.

目錄 I
表目錄 III
圖目錄 Ⅴ
摘要 Ⅷ
英文摘要 Ⅸ
第一章 續論 1
1-1 前言 1
1-2 材料簡介 1
1-2-1 複合材料概述 1
1-2-2 奈米材料性質簡介 2
1-2-3 奈米複合材料簡介 3
1-3 研究方向 4
1-4 文獻回顧 5
1-5 組織章節 7
第二章 實驗工作 8
2-1 實驗材料簡介 8
2-1-1 鋁合金2024-T3材料性質簡介 8
2-1-2 SiO2奈米微粒與APC-2簡介 8
2-2 儀器設備 8
2-3 鋁合金奈米複材積層板之製程 9
2-3-1 熱壓前之處理過程 9
2-3-2 熱壓製程 11
2-4 試片製作與分組 12
2-5 拉伸與疲勞實驗 12
2-6 掃瞄式電子顯微鏡 13
第三章 實驗結果 21
3-1 靜態拉伸實驗 21
3-2 疲勞實驗 22
3-3 鋁合金表面處理 23
3-4 試片斷面觀察 23
第四章 分析與討論 54
4-1 奈米複材積層板機械性能探討 54
4-1-1 混合理論 54
4-1-2 極限強度實驗值與混合理論比較 55
4-1-3 縱向勁度曲線擬合值與混合理論比較 55
4-1-4 疲勞性質探討 57
4-2 溫度效應 57
4-3 破壞模式之探討 58
4-3-1 破壞過程 58
4-3-2 破壞模式探討 58
4-4 表面處理探討 61
第五章 結論 68
參考文獻 69

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