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研究生：	紀奕宏 Chi, Yi-Hung
論文名稱：	熱壓壓力及持溫時間對快速碳化製作碳/碳複合材料機械性質之影響 Effects of molding pressure and carbonization duration on mechanical properties of carbon/carbon composites prepared from fast carbonization process
指導教授：	朱建平 Ju, Chien-Ping 陳瑾惠 Chern Lin, Jiin-Huey
共同指導教授:	李國榮 Lee, Kuo-Jung
學位類別：	碩士 Master
系所名稱：	工學院 - 材料科學及工程學系 Department of Materials Science and Engineering
論文出版年：	2010
畢業學年度：	98
語文別：	中文
論文頁數：	117
中文關鍵詞：	碳/碳複合材料、熱壓壓力、碳化持溫時間、機械性質
外文關鍵詞：	Carbon/carbon composites, Molding pressure, Carbonization duration, Mechanical properties
相關次數：	點閱：94 下載：0
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本研究以快速碳化製備PAN/phenolic resin碳/碳複合材料，並探討熱壓壓力及碳化持溫時間對此類材料體密度、孔隙率、微結構、機械性質及後續含浸效率的影響。
實驗結果顯示，當碳化持溫時間由g min增加到i min時，試片體密度下降、孔隙率上升、含浸效率下降，然而，機械性質相近；當在熱壓壓力由a MPa增加到d MPa時，試片體密度上升、孔隙率下降、機械性質上升、含浸效率相近。
綜合實驗結果發現，熱壓壓力d MPa、碳化持溫g min的碳/碳複合材料，具有最高之抗壓強度、較高之含浸效率，因此本參數為本研究最佳的製程參數。

The effects of molding pressure and carbonization duration on density, porosity, microstructure, mechanical properties and densification efficiency of fast-carbonized PAN/phenolic resin-base carbon/carbon composites are investigated.
The results indicate that the porosity of specimen increase as the carbonization duration increase from g min to i min, while the density and the densification efficiency of specimen decrease. Moreover, the density and the mechanical properties of specimen increase as molding pressure increase from a MPa to d MPa, while the porosity of the specimen decrease.
Consequently, base on the highest compressive strength, and higher densification efficiency of all specimens, the carbon/carbon composite that molded for d MPa and carbonized during g min (T2-P4) has the best performance.

摘 要	I
Abstract	II
誌謝	III
總目錄	IV
表目錄	IX
圖目錄	XI

第一章  前言	1
第二章  文獻回顧	3
1 碳/碳複合材料之發展	3
2 碳/碳複合材料之製程	4
2.1 預型材(preform)	4
2.1.1 碳纖維之介紹	4
2.1.2 基材種類及作用	7
2.1.3 碳纖維與基材間交互作用	8
2.2 穩定化(post-curing)	9
2.3 碳化(crbonization)	10
2.4 石墨化(graphitization)	13
2.5 緻密化(densification)	15
3 碳/碳複合材料之性質	17
3.1 碳/碳複合材料之高溫性質	18
3.2 碳/碳複合材料之機械性質	18
3.2.1 密度對機械性質的影響	19
3.2.2 熱解碳微結構對機械性質的影響	20
3.2.3 碳纖維含量對機械性質的影響	21
3.2.4 製程對機械性質的影響	21
3.3 碳/碳複合材料之磨潤性質	22
3.3.1 碳/碳複合材料之磨潤簡介	22
3.3.2 滑動磨潤簡介	23
3.3.3 石墨之磨潤行為	23
3.3.4 碳/碳複合材料磨潤研究	24
3.3.5 碳/碳複合材料磨耗機構	24
3.3.6 磨耗面型態之觀察及影響	25
3.3.7 製程參數之影響	26
3.3.8 磨耗試驗參數之影響	28
3.3.9 環境因素之影響	29
3.4 碳/碳複合材料之氧化及其防護	30
4 碳/碳複合材料之應用	31
第三章  實驗方法	51
1 實驗材料	51
1.1 基材(matrix)	51
1.2 強化材(reinforcement)	51
1.3 含浸材(impregnant)	51
2 實驗製程	52
2.1 材料準備	52
2.2 真空熱壓成型	52
2.3 穩定化	53
2.4 碳化	53
2.5 石墨化前處理	54
2.6 石墨化	54
2.7 真空緻密化含浸	54
3 性質量測及分析	56
3.1 重量量測	56
3.2 體密度及孔隙率量測	56
3.3 抗壓試驗	57
3.4 掃描式電子顯微鏡觀察	58
3.5 光學相機觀察	58
第四章  結果與討論	68
1 碳化持溫時間對碳/碳複合材料性質之影響	68
1.1 體密度變化量	69
1.2 孔隙率變化量	70
1.3 重量變化量	72
1.4 緻密化後含浸效率之比較	73
1.5 掃描式電子顯微鏡顯微組織觀察	73
1.6 機械性質之比較	74
2 熱壓壓力對碳/碳複合材料性質之影響	75
2.1 體密度變化量	75
2.2 孔隙率變化量	77
2.3 重量變化量	79
2.4 緻密化後含浸效率之比較	80
2.5 掃描式電子顯微鏡顯微組織觀察	80
2.6 機械性質之比較	81
3 綜合基本性質、機械性質之比較	81
3.1 體密度之綜合比較	82
3.2 孔隙率之綜合比較	82
3.3 含浸效率之綜合比較	82
3.4 機械性質之綜合比較	83
3.5 綜合比較	83
第五章  結論	111
第六章  參考文獻	113
                                    

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