Laser Direct Deposition Applied to the Manufacturing of Bulk, Net Shaped Metallic Glasses

Award Information
Agency: Department of Defense
Branch: Defense Threat Reduction Agency
Contract: HDTRA1-12-P-0003
Agency Tracking Number: T111-003-0008
Amount: $149,944.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solitcitation Year: 2011
Solitcitation Topic Code: DTRA111-003
Solitcitation Number: 2011.1
Small Business Information
Nanohmics, Inc
6201 East Oltorf St., Suite 400, Austin, TX, -
Duns: 100651798
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mike Durrett
 Principal Scientist
 (512) 389-9990
 mdurrett@nanohmics.com
Business Contact
 Michael Mayo
Title: President
Phone: (512) 389-9990
Email: mmayo@nanohmics.com
Research Institution
 Stub
Abstract
Manufacturing of bulk metallic glasses (BMG) requires very rapid cooling and some recent work in laser direct deposition or laser engineered net shaping (LENS) techniques has indicated the possibility of producing net shaped bulk quantities of these materials. To date several groups have had some initial success in forming BMG"s using laser direct deposition suggesting that a careful variation of the process parameters can result in an excellent BMG. Recent work by Dr. Y. C. Shin at Purdue"s Mechanical Engineering Department has led to a self consistent model for LENS. This model incorporates all physical and material parameters and allows an efficient and cost effective means to explore LENS parameter space to optimize the production of BMG"s in net shaped bulk quantities. In the proposed effort Nanohmics, in partnership with Dr. Shin will apply the newly developed model to optimize the creation of bulk BMG"s. In addition composite materials which include the addition of reinforced fiber or particulate materials such as SiC fibers, WC or TiC, will be investigated and a means to incorporate these in the LENS process will be explored and developed. Composite BMG materials provide a very distinct increase in failure strengths under dynamic loads.

* information listed above is at the time of submission.

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