NOVEL ACOUSTIC DAMPING MATERIALS

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 10330
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Ultramet
12173 Montague St, Pacoima, CA, 91331
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Andrew J Sherman
 (818) 899-0236
Business Contact
Phone: () -
Research Institution
N/A
Abstract
IMPROVED MATERIALS HAVING A HIGH DAMPING CAPACITY, COMBINED WITH GOOD MECHANICAL PROPERTIES AND SUITABLE FOR STRUCTURAL USES, ARE NEEDED IN A VARIETY OF APPLICATIONS. AMONG THE AREAS IN WHICH ACOUSTIC DAMPING IS DESIRABLE ARE IMPROVING THE RESPONSE AND ACCURACY OF TRACKING, POINTING, AND GUIDANCE SYSTEMS; INCREASING "STEALTH", AS WELL AS PERSONNEL COMFORT; AND ISOLATING AND/OR PROTECTING SENSITIVE EQUIPMENT. IN THIS PHASE I PROGRAM, ULTRAMET PROPOSES TO DEVELOP AND INVESTIGATE THE POTENTIAL OF A UNIQUE NEW CLASS OF MATERIALS HAVING CONTINUOUS CERAMIC AND METAL MATRICES, FABRICATED BY INFILTRATING A METAL MATRIX INTO A RETICULATED, HIGH-MODULUS CERAMIC FOAM BY CHEMICAL VAPOR INFILTRATION (CVI), A VARIATION OF THE CHEMICAL VAPOR DEPOSITION (CVD) PROCESS. THIS INNOVATIVE MATERIAL WILL POSSES THREE-DIMENSIONAL INTERCONNECTED MATRICES OF BOTH CERAMIC AND METAL PHASES, OFFERING THE MODULUS AND DIMENSIONAL STABILITY OF A CERAMIC WITH THE FRACTURE TOUGHNESS AND FABRICABILITY OF A METAL. ADDITIONALLY, THE VAST DIFFERENCE IN ELASTIC MODULI BETWEEN THE TWO PHASES WILL PROVIDE SIGNIFICANT ACOUSTIC DAMPING CAPACITY, PARTICULARLY SUITED FOR LOW-FREQUENCY ATTENUATION. THIS STIFF, STRONG CERAMIC/METAL MATRIX COMPOSITE WILL REPRESENT A SIGNIFICANT ADVANCE OVER CURRENT TECHNOLOGY.

* information listed above is at the time of submission.

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