Products
Baffles
Microphone Baffle
ERG has been working with NASA Glenn Research Center for a number of years to improve the performance of piezeoelectric wind tunnel microphones. Duocel aluminum foam acts as a microphone cover to reduce wind noise and act as a flow straightener. The device depicted is 40PPI,
6-8% aluminum foam epoxy bonded to a bored out 6061-T6 shell which houses the microphone.
Space Based Solid Cryogen Tank
Space based infrared optics using solid cryogenic coolers utilize aluminum foam as an isothermalizer and baffle structure. Keeping a solid cryogen at a uniform temperature gives the infrared optics a longer useful lifetime.
Liquid Nitrogen Tank
Duocel Aluminum foam is used as the structural core, heat exchanger, and anti-slosh baffle in a lightweight conformal pressure tank. The tank stores liquid nitrogen for an airborne infrared telescope system.
Missile Baffles
Aluminum foam is being used to provide environmental protection for the first stage rocket motors of submarine launched ballistic missiles. Truncated conical foam components are mounted in the throat of the rocket motor nozzle and protect the solid propellant grain from the underwater launch and seawater environments until the missile is above the ocean surface and is ready to ignite.
