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Additively Manufactured Scramjets

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8649-21-P-0176
Agency Tracking Number: FX20D-TCSO1-0172
Amount: $149,999.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: AFX20D-TCSO1
Solicitation Number: X20.D
Solicitation Year: 2020
Award Year: 2021
Award Start Date (Proposal Award Date): 2020-12-01
Award End Date (Contract End Date): 2021-06-01
Small Business Information
20 New England Business Center
Andover, MA 01810-1111
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Sean Torrez
 (978) 738-8176
Business Contact
 B. David Green
Phone: (978) 689-0003
Research Institution
 Concurrent Technologies Corporation
 Jennifer Blough
100 CTC Drive
Johnstown, PA 15904-1935
United States

 (814) 269-2871
 Domestic Nonprofit Research Organization

The Air Force requires large scale scramjet engines but current fabrication methods have long lead times, high part rejection rate, and great expense due to hand-rework by skilled fabricators. Physical Sciences Inc. (PSI) will address these shortcomings by continuing development of our Additive Manufacturing (AM) plus brazing process that allows duct segments and other components to be joined together into large-scale, highly complex scramjet assemblies. PSI’s method makes it possible to combine many pieces of potentially differing materials together into a leak-free whole. Different metals can be used, as can dissimilar materials such as ceramic and metal. This method makes use of PSI’s previously developed heat exchanger geometry, which has resulted in four times reductions to the weight of airborne heat exchangers. PSI’s method has demonstrated capability to contain over 27 MPa (4000 psi) of internal pressurization, a suitable proof pressure for the typical 1000 psi fuel pressure requirement. In the proposed Phase I program, PSI and STTR partner will build additional, representative scramjet test segments from several materials. We will braze them to show viability of the joining process, and assess the suitability of the assembly to overall scramjet fabrication. In Phase II, a scramjet duct segment will be produced.

* Information listed above is at the time of submission. *

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