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Mechanically Alloyed Carbon Nanotubes (CNT) Reinforced Nanocrystalline AA 4032: Synthesis and Characterization
Advanced Materials processing laboratory,Department of Metallurgical and Materials Engineering,National Institute of Technology, Tiruchirappalli- 620 015, India
Advanced Materials processing laboratory,Department of Metallurgical and Materials Engineering,National Institute of Technology, Tiruchirappalli- 620 015, India
Advanced Materials processing laboratory,Department of Metallurgical and Materials Engineering,National Institute of Technology, Tiruchirappalli- 620 015, India
- 1 Advanced Materials processing laboratory,Department of Metallurgical and Materials Engineering,National Institute of Technology, Tiruchirappalli- 620 015, India
- 2 Advanced Materials processing laboratory,Department of Metallurgical and Materials Engineering,National Institute of Technology, Tiruchirappalli- 620 015, India
- 3 Advanced Materials processing laboratory,Department of Metallurgical and Materials Engineering,National Institute of Technology, Tiruchirappalli- 620 015, India
Journal of Minerals and Materials Characterization and Engineering·Volume 09 (2010)·Pages 1027–1035·Published 20 November 2010·DOI10.4236/jmmce.2010.911074
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Abstract
Powder metallurgy has emerged as a promising technique to develop carbon nanotubes reinforced metal matrix composites. In this work, high energy ball mill was used to disperse multi-walled carbon nanotubes in AA 4032 alloy. The nanocrystalline nature of AA 4032 was obtained by milling the elemental powders for 30 hours. Different mass fractions of carbon nanotubes were added in the matrix at end of 29th hour. The phase evolution and changes in crystallite size and lattice strain were analyzed using X- ray diffractometer (XRD). SEM analysis reveals the morphological changes during the milling process. Transmission electron microscopy (TEM) studies reveal the presence of CNTs in the matrix and evidenced the uniform distribution of CNTs inside the matrix.
KeywordsMulti walled carbon nanotubesNanocrystallineAA 4032XRDSEM and TEM
- H.T.Son, H.T., Kim, T.S., Suryanarayana, C and Chun, B.S., 2003, “Homogeneous dispersion of graphite in a 6061 aluminum alloy by ball milling”, Material Science and Engineering A, Vol. 348, pp. 163-169.
- Yoshihito Kawamura, Hideo Mano and Akihisa Inoue, 2001, “Nanocrystalline aluminum bulk alloys with a high strength of 1420 MPa produced by the consolidation of amorphous powders”, Scripta Materialia, Vol. 44, pp. 1599-1604.
- Hu Lianxi, Liu Zuyan and Wang Erde, 2002, “Microstructure and mechanical properties of 2024 aluminum alloy consolidated from rapidly solidified alloy powders”, Materials Science and Engineering A, Vol. 323, pp.213-217.
- So,H., Li, W.C., and Hsieh, H.K., 2001, “Assessment of the powder extrusion of siliconaluminium alloy”, Journal of Materials Processing Technology, Vol. 114, pp. 18-21.
- Heard, D.W., Donaldson, I.W and Bishop, D.P., 2009, “Metallurgical assessment of a hypereutectic aluminum–silicon P/M alloy”, Journal of Materials Processing Technology, Vol. 209, pp. 5902-5911.
- Hasegaw, T., Yasuno, T., Nagai, T and Takahashi, T., 1998, “Origin of superplastic elongation in aluminum alloys produced by mechanical milling”, Acta Materialia Vol. 46, pp. 6001-6007.
- Ruof, R.S and Lorents, D.C., 1995, “Mechanical and thermal-properties of carbon nanotubes”, Carbon, Vol.33, pp. 925-930.
- Iijima,S., 1991, “Helical Microtubules of graphitic carbon”, Nature, Vol. 354, pp.56-58.
- Iijima, S and Ichihasi, T., 1993, “Single-shell carbon nanotubes of 1-nm diameter”, Nature, Vol. 363 (1993) pp.603-605.
- Valentin N.Popov, 2004, “Carbon nanotubes: Properties and applications”, Material Science and Engineering R, Vol. 43, pp. 61-102.
- Yu M. F., Files B. S., Arepalli S., and Ruoff, R. S., 2000, “Tensile loading of ropes of single wall carbon nanotubes and their mechanical properties”, Physical Review Letters, Vol. 84, pp. 5552-5555.
- Overney, G., Zhong, W. and Dománek, D., 1993, “Structural Rigidity and Low Frequency Vibrational Modes of Long Carbon Tubules”, Zeitschrift für Physik D, Vol. 27, pp.93-96.
- Cha, S.I., Kim, K.T., Arshad, S.N., Mo, C.B and Hong, S.H., 2005, “Extraordinary Strengthening Effect of Carbon Nanotubes in Metal-Matrix Nanocomposites Processed by Molecular-Level Mixing”, Advance Materials, Vol.17, pp. 1377-1381.
- George, R., Kashyap, K.T., Rahul, R., and Yamdagni, S., 2005, “Strengthening in Aluminium/CNT Composites”, Scripta Materialia, Vol. 53, pp. 1159-1163.