Material transporting applications, such as filtration, absorption, venting, wicking and diffusion, are
very important in modern industry. The transporting media are usually porous structures
manufactured with powder, fibers, and foam materials. Sintering is the most common process to
produce transporting media with powder, where the powder particles are heated or compressed to
form a solid mass of porous material without melted to the point of liquefaction. The resulting porous
materials have isotropic and uniform interconnecting pores. The process also offers a unique
combination of functionality and structural strength. However, the sintering process can only be
implemented by molding methods. As a result, the boundary geometry is limited. In addition, multiporosity
in one object is not possible.
A method of tuning material transporting properties with multi-phase internal structures is proposed.
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INC, HP, "TUNING MATERIAL TRANSPORTING PROPERTIES WITH MULTI-PHASE INTERNAL STRUCTURES", Technical Disclosure Commons, (March 27, 2020)