Porous tungsten is a powder metallurgy tungsten product prepared by powder metallurgy method, which contains a large number of pores inside. These pores endow porous tungsten with unique physical and chemical properties, making it widely applicable in multiple fields. The preparation process of porous tungsten is relatively complex, involving steps such as powder selection, compression molding, and sintering. Through these steps, its characteristics such as porosity, pore size, and pore structure can be controlled.
The density of porous tungsten is not a fixed value, but varies depending on its porosity. Due to its excellent properties such as high temperature resistance, corrosion resistance, high specific surface area, and high permeability, porous tungsten can maintain stability and play its unique role in extreme environments such as high temperature, high pressure, and strong corrosion.
The application fields of porous tungsten are very extensive, for example, it can be used as a substrate material for reserve diffusion tungsten thermocathodes, in electronic devices such as electronic tubes; It can also serve as a framework for preparing W-Cu composite materials by infiltration method, improving the performance of composite materials; In addition, porous tungsten can also be used to make high-temperature fluid filtration materials for filtering and separating impurities in high-temperature fluids.
Overall, porous tungsten is a material with unique structure and properties, which has important application value in fields such as aerospace, electronics, metallurgy, and chemical engineering. With the continuous progress of technology, the preparation process and performance of porous tungsten will be further improved and expanded.
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