| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 671052 | Journal of Non-Newtonian Fluid Mechanics | 2010 | 10 Pages |
Abstract
In the present study, a rotational measurement technique was used to evaluate viscosities of liquid metals and metallic alloys. Three types of measurement geometries in a high temperature rotational rheometer were evaluated: cone and plate, DIN coaxial, and double concentric cylinder (DCC). The DCC geometry proved to be the most effective. An analytical solution has been presented to evaluate the viscosity as a function of shear rate for DCC geometry. The flow curves and shear viscosities of pure Al, pure Zn and Sn95.8Ag3.28Cu0.92 solder alloy have been evaluated as a function of shear rate and melt superheat temperature. It is proposed that liquid metal systems are non-Newtonian and strongly shear thinning in flow behavior.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Mohammad Minhajuddin Malik, Manickaraj Jeyakumar, Mohamed S. Hamed, Michael J. Walker, Sumanth Shankar,