Affordable High Strength Mo-Si-B Alloys for High Temperature Applications

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,947.00
Award Year:
2011
Program:
STTR
Phase:
Phase I
Contract:
N00014-11-M-0276
Award Id:
n/a
Agency Tracking Number:
N11A-029-0197
Solicitation Year:
2011
Solicitation Topic Code:
N11A-T029
Solicitation Number:
2011.A
Small Business Information
184 Cedar Hill Street, Marlborough, MA, -
Hubzone Owned:
N
Minority Owned:
Y
Woman Owned:
N
Duns:
121001945
Principal Investigator:
SomeshMukherjee
Senior Scientist
(508) 481-5058
smukherjee@aspensystems.com
Business Contact:
KangLee
President&CEO
(508) 481-5058
klee@aspensystems.com
Research Institute:
Southwest Research Institute
James D Oxley
6220 Culbera Rd
Dept of Microencapsulation
San Antonio, TX, 78238-5166
(210) 522-2913

Abstract
Mo-Si-B alloys are being considered as possible candidates for high temperature applications such as next generation jet engine blades because of its excellent oxidation resistance and mechanical properties which are much superior to Ni-based super alloys. Navy is looking for cost effective mature Mo-Si-B material production technology for its aerospace applications. In Phase I, Aspen Systems plans to explore cost effective unique processing approaches to develop Mo-Si-B material to a full density with excellent properties. During Phase I, Aspen will formulate and produce a moderate quantity of Mo-Si-B alloy powder by special kind of spray drying technique which has the ability to form particles with a more narrow size distribution when compared to traditional spray drying techniques. The spray-dryed particles will be analyzed for particle size, morphology, composition and thermal stability. These Mo-Si-B alloy premixed powders will be subsequently heat treated(sintering)under protective atmosphere to obtain the desired Mo-Si-B alloy. The sintered material will be further extruded using special extrusion technique with very high strain rate so that fine grained and uniform structure is developed. Properties evaluation including tensile, creep and oxidation of the materials will also be performed during Phase I study. During Phase II program, we will scale-up this process to develop and demonstrate this successful cost effective technology for mass production with proven optimized process parameters based on Phase I data.

* information listed above is at the time of submission.

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