Fiscal Year:
2002
Title:
Damage Tolerant Amorphous Metal Alloys
Agency / Branch:
DOD / DARPA
Contract:
DAAH01-02-C-R125
Award Amount:
$0.00
Abstract:
QuesTek Innovations will employ a computational materials design approach to high-temperature aluminum alloys, addressing glass-forming alloys compositions that can be fully devitrified to desired novel dispersions of stable, low-misfit, coherent,multicomponent L12-structured A13X compounds with coarsening resistance to 300 oC. Building on the research of its Phase I SBIR, QuesTek will undertake model and database development including thermodynamics, mobilities, liquid viscosity and molarvolumes, while constructing a theory of nucleation incubation in multicomponent systems, for incorporation in a new numerical precipitation model to be applied to both glass formation and devitrification dynamics. Electronic - level calculations will helpidentify desirable alloy components for both phase stability and misfit control. Atom-probe microanalysis of glass devitrification in design prototypes will quantify essential diffusion and decomposition behavior.
Small Business Information at Submission:
Questek Innovations, Llc
1820 Ridge Avenue Evanston, IL 60201
EIN/Tax ID:
DUNS:
N/A
Number of Employees:
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No