不同成型及燒結方式製作添加SiC、Graphite、graphene及CNT之鋁基複合材料性質探討

Investigation of Aluminum Matrix Composite Materials by Adding SiC, Graphite, Graphene and CNT Prepared through Different Forming and Sintering Methods

劉冠廷(Guan-Ting Liou)

指導教授 ： 李國榮

義守大學/理工學院/材料科學與工程學系/碩士(2016年)

摘要

本研究將分為兩部分內容探討，於第I部分，使用三種不同球磨混合方式、兩種不同成型方式及三種不同燒結方式製作所需之Al/CNT複合材料試片，藉此探討純Al粉末與CNT間混合方式與成型性間之關聯性。第Ⅱ部分，主要探討以乾式球磨、不同成型方式及燒結方式製作添加SiC、Graphite、Graphene及CNT對Al基複合材料之硬度、抗彎強度、導電性、顯微組織及磨耗性質等影響。
第I部分實驗結果顯示，以先溼式混合後乾式球磨混合及200℃成型可提高試片成型性。再透過熱壓燒結，可進一步提高Al/CNT試片之硬度值及體密度，並降低試片視孔隙率。
第Ⅱ部分實驗結果顯示，相較於純Al之試片，添加SiC能提高硬度，但會導致導電度下降；Graphite 及CNT則會降低硬度值及抗彎強度，但能提升導電度；Graphene則對硬度值影響不大，而抗彎強度則會下降，導電度則些微提升。

關鍵字

鋁基複合材料 ； 碳化矽 ； 石墨 ； 石墨烯 ； 奈米碳管

並列摘要

In This study, two parts of experimental contents were to investigate. In part I, different milling mixing, forming and sintering methods were used to make different Al/CNT specimens. The objective of part I was to investigate the relevance between mixing method of Al/CNT powder and the specimen's formability. In part Ⅱ, it was focused on the effect of process paramaters on the mechanical, electrical, and tribological properties of different specimens.
In part I, the results show that the specimens prepared through wet-mixing, dry-milling, and 200℃ forming method exhibit well formability. Therefore, Al/CNT specimens further prepared through the hot press sintering show increasing hardness, density, and decreasing apparent porosity.
In Part Ⅱ, to compare with the pure Al specimen, experimental results show that the hardness of those specimens adding with SiC increased, but the conductivity decreased. Adding graphite, CNT and graphene will reduce the specimen's hardness and flexural strength, but improve the conductivity.

並列關鍵字

aluminum matrix composite materials ； sillcon carbide ； graphite ； graphene ； carbon nanotube

參考文獻

[23]. 周金德，鎳基超級電容器電極材料之製備，義守大學材料科學及工程學系碩士論文，2014年7月。

[9]. 何淑靜，銅/酚醛樹脂半金屬磨擦材料磨潤性質研究，國立成功大學材料科學及工程學系博士論文，2004年12月。

[13]. D. William and J. Callister, “Fundamentals of materials science and engineering”, Wiley, 2005, pp.47-50.

[17]. S. Iijima, “Helical microtubules of graphitic carbon”, Nature, vol.354, 1991, pp.56-58.

[21]. S. Bandow, “Radial Thermal Expansion of Purified Multiwall Carbon Nanotubes Measured by X-ray”, Japanese Journal of Applied Physics Part 2, Vol. 36, 1997, pp.L1403-L1405.