Welton S. Chacon

TL;DR: In this article, double-layered cellular alumina membranes for use in hot aerosol filtration applications were prepared based on the freeze casting and sintering of high alkane phase emulsified suspensions (HAPES).

TL;DR: In this paper, the porosity of porous SiC ceramics was studied at room temperature at 26-650 degrees C. At room temperature Darcian (k(1)) and non-Darcian(k(2)) permeability parameters vary from 1.64 to 18.42x10(-13)m(2) and 0.58 to 2.95x10−7m, respectively.

TL;DR: In this article, the porosity of metal carbide targets was analyzed in argon flow experiments at room and high temperature, showing that porosity increases with the increase in the gas temperature due to thermal expansion effects.

TL;DR: In this paper, the experimental evaluation of physical and gas permeation parameters of four spinel-based investments developed with or without inclusion of sacrificial fillers was performed, and the developed investments were more porous and less permeable than commercial brands, attributed to the different pore morphologies and hydraulic pore sizes of ceramic matrices.

TL;DR: In this paper, the Ni-SiO2 fibers were characterized for X-ray powder diffraction, scanning electron microscope, particle size distribution, specific surface area, nickel contents, porosity, tortuosity, permeability, compressive strength, degree of dispersion and gas conversion efficiency.