What are the corrosion-resistant environments of common sintered metal powder porous materials?

Sintered metal powder porous materials are rigid porous materials formed by shaping and sintering metal or alloy powders at high temperatures. They possess a large number of interconnected or semi-connected pores within their structure. The pore arrangement is created by stacking both regular and irregular powder particles. The size, distribution, and porosity of the pores depend on the powder composition, particle size, and the manufacturing process.

By virtue of the internal pore structure, metal powder porous materials exhibit numerous excellent properties. These include lightweight construction, a large specific surface area, efficient energy absorption, low thermal conductivity (in closed-pore bodies), high heat transfer and dissipation capabilities (in through-hole bodies), effective acoustic absorption (in through-hole bodies), excellent permeability (in through-hole bodies), strong electromagnetic wave absorption (in through-hole bodies), flame resistance, heat and fire resistance, thermal shock resistance, gas sensitivity, regenerative properties, and good processability. They find wide-ranging applications in fields such as filtration, separation, fluid flow control, self-lubricating bearings, distributors, surface combustion, phase change heat transfer, sound absorption, battery electrodes, and more.

Commonly used sintered metal powder porous materials include bronze, stainless steel, iron, nickel, titanium, tungsten, molybdenum, and refractory metal compounds. Different materials are suitable for specific environmental conditions, depending on the intended application.

Suitability of common sintered metal powder porous materials in corrosive environments.

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