Graphite foam / Carbon Foam -simultaneously achieves comprehensive management of heat, sound, and RF/EMI signals

OSAT, a Carbon Foam manufacturer, a competitive Graphite foam/Carbon Foam manufacturer.

In 1998, James Klett of Oak Ridge National Laboratory (ORNL) in the United States discovered a mesophase pitch-based graphitized foam porous material. The internal structure is a three-dimensional through-cell structure, and the cells are in the shape of a pentagonal dodecahedron.

It has a series of excellent properties such as high strength, high thermal conductivity/electrical conductivity, high-temperature resistance, acid and alkali resistance, and easy structure control. It is a lightweight thermal management material and a thermal conductivity and sound absorption property. Materials can be used in the fields of thermal, acoustic, and RF/EMI signal management.

It is used in thermal management of high-power equipment due to its light weight, high thermal conductivity, and efficient contact with other gases or liquid heat dissipants. Tests have shown that when using liquid heat dissipation agent, the thermal diffusion coefficient of graphite foam can be as high as approximately 2600W/m2K, which is more than 10 times that of traditional foam aluminum radiators (approximately 250W/m2K), and the thermal response of graphite foam The time is much shorter than aluminum foam.

The interconnected open pore structure inside graphite foam can effectively absorb electromagnetic waves and reduce electromagnetic waves and vibrations by relying on the vibration of phonons inside the material. It is currently the only material on the market that essentially conducts heat and absorbs sound at the same time. It can be used Specialized in the fields of thermal, acoustic, and RF/EMI signal management.