Accession Number : ADD018488

Title :   Lightweight High Damping Porous Metal/ Phthalonitrile Composites.

Descriptive Note : Patent Application, Filed 28 Apr 97,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Imam, M A ; Sastri, Satya B ; Keller, Tedyy M

PDF Url : ADD018488

Report Date : 28 Apr 1997

Pagination or Media Count : 32

Abstract : Accordingly, it is an object of this invention to produce light structural materials having good structural and acoustic damping properties. It is another object of the present invention to reduce noise derived from the operation of machinery. It is a further object of the present invention to provide a material with high structural strength, high acoustic damping, superb high temperature properties, and high flame resistance. These and other objects are achieved by impregnating a metal foam with a phthalonitrile polymer.

Descriptors :   *PATENT APPLICATIONS, *COMPOSITE MATERIALS, *ACOUSTIC INSULATION, METALS, POLYMERS, STIFFNESS, DAMPING, HEAT TREATMENT, LIGHTWEIGHT, NOISE REDUCTION, PHTHALATES, NITRILES, THERMAL RESISTANCE, FIRE RESISTANT MATERIALS

Subject Categories : Laminates and Composite Materials
      Mfg & Industrial Eng & Control of Product Sys
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE