Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2012.2397.2403MuhsanAli S. AhmadFaiz MohamedNorani M. YusoffPutri S.M.BT M. RazaM.R. 1220121223New thermal management solutions are required to provide cost-effective
means of dissipating heat from next generation microelectronic devices. In this
paper, fabrication of heat sink nanocomposite made of copper reinforced by multiwalled
carbon nanotubes up to 10 Vol. % using metal injection molding technique is
presented. A mixture of Cu-MWNTs was compounded using internal mixer machine
for homogenous dispersion of the solid powder in the binder. To ensure a flow
able feedstock during injection molding process, different binder systems and
their Cu-MWNTs feedstocks were examined using capillary rheometer machine. In
order to avoid binder degradation, TGA test was carried out. The TGA results
showed that the processing temperature such as mixing and injection molding
should be lower than 170°C. The injection molding was carried out at low
pressure. A combination of solvent and thermal debinding was used for binder
removal, and then the samples were isothermally sintered at different sintering
temperatures (900-1050°C) in argon atmosphere. The results showed that the
sintered samples experienced an isotropic shrinkage around 17% with relatively
homogeneous dispersion of MWNTs in the copper matrix which is expected to enhance
the physical and mechanical properties of the final product.]]>Ali Samer, M., F. Ahmad, N. Muti Mohamed and M. Rafi Raza,20111199202Ang, L.M., T.S.A. Hor, G.Q. Xu, C.H. Tung, S.P. Zhao and J.L.S. Wang,200038363372Agarwal, A., S.R. Bakshi and D. Lahiri,20112011German, R.M. and A. Bose,1997Cho, S., K. Kikuchi, T. Miyazaki, K. Takagi, A. Kawasaki and T. Tsukada,201063375378Ahmad, F., A.S. Muhsan and M. Rafi Raza,2011403-40853355340Goudah, G., F. Ahmad, O. Mamat and M.A. Omar,20101032953300German, R.M.,2003Pages: 260Pages: 260Moballegh, L., J. Morshedian and M. Esfandeh,20055928322837Raza, M.R., F. Ahmad, M.A. Omar and R.M. German,20111120422047Carubelli, S. and Z. Khatir,20033411431151Chung, S.H., Y.S. Kwon, S.J. Park and R.M. German,20102010pp: 323-334pp: 323-334Gao, X.P., Y. Zhang, X. Chen, G.L. Pan and J. Yan et al.,2004424752