What are the advantages and characteristics of porous materials? What are the advantages of metal porous materials?

1, good energy absorption: metal porous materials have good energy absorption characteristics and can be used to manufacture energy absorbers, shock absorbers, mechanical engineering and vehicle engineering. When they are suddenly hit, it is not easy to cause fatal accidents.

2. Good damping effect: Some porous metal materials are solidified by the by-products of metal and gas, so as long as these holes are used, a large amount of gas can be stored in the materials. When a material receives energy from a vibration source, the transmitted energy will be dissolved due to the great internal friction of the material. Porous metal materials also have good sound absorption ability, so they are widely used as isolation materials for noise sources, such as porous aluminum alloys and magnesium alloys. It is used as a partition wall in submarines to prevent sonar tracking. Using suspended ceilings in noisy places can greatly reduce noise. In the future, the material can also be used in automobiles and other vehicles to reduce the spread of engine noise.

3. Large specific surface area: Metal porous materials have a large specific surface area, so electrochemical electrodes can be made by electrochemical methods, which can greatly improve the energy release in the electrochemical reaction process, such as foam nickel electrode batteries. Porous metal material has large specific surface area, strong heat transfer and radiation ability, good cold and heat resistance and sound absorption ability, and is an ideal material for automobile exhaust processor.