HIGH STRENGTH AND TOUGHNESS TUNGSTEN CARBIDE (WC) WITH NON-COBALT (Co) MATRICES

Award Information
Agency:
Department of Defense
Branch
Office of the Secretary of Defense
Amount:
$100,000.00
Award Year:
2013
Program:
STTR
Phase:
Phase I
Contract:
W911QX-13-C-0088
Award Id:
n/a
Agency Tracking Number:
O12B-T07-2007
Solicitation Year:
2012
Solicitation Topic Code:
OSD12-T07
Solicitation Number:
2012.B
Small Business Information
4401 Dayton-Xenia Road, Dayton, OH, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
Y
Duns:
074689217
Principal Investigator:
Carmen Carney
Principal Investigator
(937) 255-6910
ccarney@ues.com
Business Contact:
Mr.Rick Weddle
Director, Contracts
(937) 426-6900
rweddle@ues.com
Research Institute:
Pennsylvania State University
Barbara Johnson
PO Box 30
State College, PA, 16804-
(814) 865-0307
Nonprofit college or university
Abstract
Cemented cobalt-tungsten carbide is a material with attractive properties including high hardness and fracture toughness that has found success in a wide variety of applications ranging from drilling bits to armor piercing projectiles. However, with the classification of cobalt as a strategic and critical material that the US Department of Health and Human Services has classified as"reasonably anticipated to be a human carcinogen"a replacement is necessary. Carbides represent a group of materials with inherent high hardness and strength, but that are extremely brittle. This proposal seeks to increase the fracture toughness of tungsten carbide by two parallel processes: bottom up and top down. Nanosized tungsten carbide will be used in the bottom up process to produce highly dense fine-grained structures either through the refinement of commercial powder or of the sintering parameters. While the top-down approach will utilize powder production by arc melting of tungsten carbide and tungsten to produce fine lamella structures. By controlling the final sintered microstructure, the fracture toughness of the binderless tungsten carbide will be increased by producing a dense material with high hardness and strength.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government