High-Temperature Liquid Metal Infusion Considering Surface Tension-Viscosity Dissipation

作者：Kumar Vinod^*; Harris Christopher K; Bronson Arturo; Shantha Kumar Sanjay; Medina Arturo

来源：Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 2016, 47(1): 108-115.

DOI：10.1007/s11663-015-0518-4

In considering the significant effect of the surface tension-viscosity dissipation driving the fluid flow within a capillary, high-temperature liquid metal infusion was analyzed for titanium, yttrium, hafnium, and zirconium penetrating into a packed bed. A model of the dissipation considers the momentum balance within the capillary to determine the rate of infusion, which is compared with the Semlak-Rhines model developed for liquid metal penetration into a packed bed assumed as a bundle of tubes mimicking the porosity of a packed bed. For liquid Ti, the penetration rate was calculated from 0.2 A mu s to 1 ms and rose to a maximum of 7 m/s at approximately 1 A mu s; after which, the rate decreased to 0.7 m/s at 1 ms. Beyond 10 A mu s, the decreasing trend of the rate of penetration determined by the model of dissipation compared favorably with the Semlak-Rhines equation.

• 出版日期2016-2