METAL MATRIX COMPOSITES BEHAVIOR AT CRYOGENIC TEMPERATURES

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$453,418.00
Award Year:
1987
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
7613
Agency Tracking Number:
7613
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2225 E 28th St Bldg 511, Long Beach, CA, 90806
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Samuel W Bradstreet
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
*MMC ARE VIALBLE CANDIDATES FOR SATELLITE AND SPACECRAFT STRUCTURES. THEIR PROPERTIES AND BEHAVIOR AT THE LOW TEM- PERATURES EXPERIENCED IN LOW-EARTH OR GEOCENTRIC ORBITS OR FOR DEEP SPACE MISSIONS ARE INADEQUATELY KNOWN. NETCO PRO- POSES TO OBTAIN THESE DATA UTILIZING SPECIMENS OF A GR/A1 UNIDIRECTIONAL FIBER-REINFORCED COMPOSITE. PRELIMINARY NON-DESTRUCTIVE METHODS FOR CHARACTERIZING PANEL-TO-PANEL AND SPECIMEN-TO-SPECIMEN VARIABILITY WILL FIRST BE UNDERTAKEN, AND A SMALL NUMBER OF SPECIMENS WILL BE TESTED AT RT 20.0 DEG C) FOR LONGITUDINAL AND TRANSVERSE STRENGTHS, DYNAMIC AND STATIC MODULI, AND STRAINS TO FAILURE IN TENSION AND COMPRESSION. WET CHEMICAL ANALYSISWILL BE OBTAINED. HALF THE REMAINING SPECIMENS WILL BE IMMERSED ONCE OR MORE TIMES IN LN (2) AND AGED TO T6. THERE WILL BE COMPLETE CHARACTERIZATION AND HALF OF THEM WILL BE STATICALLY TESTED AT RT WITH PARTICULAR CARE BEING TAKEN TO DETERMINE THE ELASTIC LIMITS IN LONGITUDINAL TENSION AND COMPRESSION. THEREMAINING T6 SPECIMENS WILL BE TESTED FOR CTE (L) IN THE RANGE OF RT-LN(2) - RT, AND A SMALL NUMBER STATICALLY TEST- ED IN THE LN(2) TEMPERATURE (-195.8 DEG C).

* information listed above is at the time of submission.

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