%P 5335-5340
%R 10.4028/www.scientific.net/AMR.403-408.5335
%V 403-40
%J Advanced Materials Research
%T Rheological behavior of carbon nanotubes/ copper feedstocks for metal injection molding
%X Metal injection molding (MIM) technology is known for its ability of producing near net shape components. This study presents the results of flow behavior of multi-walled carbon nanotubes (MWCNTs) reinforced copper composites mixes. The solid loadings in the copper mixes were investigated in the ranges of 55-61 V using a binder. Copper mixes and copper/MWCNTs were compounded using a Z-blade mixer for homogenous dispersion of solids in the binder. Results identified a mix containing 59 V copper suitable for substitution of MWCNTs. The flow properties were measured using a capillary rheometer in the shear rate range expected to occur during metal injection molding. An increasing trend in viscosity of the copper mixes with powder loading was noted. Copper/MWCNTs composite mixes showed viscosity more than 1000 Pa.s perhaps due to addition of MWCNTs and increasing trend in viscosity of copper/MWECNTs was recorded. The results of flow data showed that all copper composite mix containing up to 10 Vol. MWCNTs were successfully injection molding and test samples were produced. © (2012) Trans Tech Publications, Switzerland.
%C Kuala Lumpur
%O cited By 7; Conference of 2011 7th International Conference on MEMS, NANO and Smart Systems, ICMENS 2011 ; Conference Date: 4 November 2011 Through 6 November 2011; Conference Code:87709
%L scholars3219
%K Capillary rheometer; Copper composites; Flow behaviors; Flow data; Flow properties; Metal injection molding; Near-net-shape components; Powder loading; Rheological behaviors; Solid loading; Test samples, Behavioral research; Binders; Carbon; Carbon nanotubes; Compounding (chemical); Copper; Feedstocks; Metal molding; Metals; Multiwalled carbon nanotubes (MWCN); Reinforced plastics; Rheology; Shear flow; Viscometers; Viscosity, Injection molding
%D 2012
%A F. Ahmad
%A A.S. Muhsan
%A M.R. Raza