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High Performance Thrusters for DACS Propulsion

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0147-13-C-7632
Agency Tracking Number: B2-1941
Amount: $995,306.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: MDA11-021
Solicitation Number: 2011.2
Timeline
Solicitation Year: 2011
Award Year: 2013
Award Start Date (Proposal Award Date): 2013-08-09
Award End Date (Contract End Date): 2015-08-11
Small Business Information
19501 144th Avenue NE Suite F-500
Woodinville, WA -
United States
DUNS: 015577190
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ender Savrun
 President
 (425) 485-7272
 ender.savrun@siennatech.com
Business Contact
 Canan Savrun
Title: Vice President
Phone: (425) 485-7272
Email: c.savrun@siennatech.com
Research Institution
 Stub
Abstract

Carbon-fiber reinforced silicon carbide matrix (SiC/Cf) composite was identified as the leading thruster construction material for SDACS for SM3-Block IIB. For SDACS propulsion applications, SiC/Cf composite surfaces must be hermetically sealed and SiC/Cf composite must be joined to each other and to refractory metal alloys for thruster construction. In Phase I we developed novel joining alloys and demonstrated joining techniques for SiC/Cf composites to each other and to C103, a refractory Nb alloy. The shear strengths of the SiC/Cf composite-C103 alloy joints (156 MPa) were almost 5 times higher than the highest value (34 MPa) reported in open literature. The Phase II project will expand on the success of Phase I work by (i) fine tuning braze alloy compositions, (ii) demonstrating the applicability of developed joining techniques to achieve high reliability SiC/Cf composite-(Mo-Re) alloy joints, (iii) designing joint geometries that are applicable for thruster construction by computer modeling, and (iv) providing a prototype SiC/Cf composite-C103 or Mo-Re alloy joint that is suitable for incorporating into an SDACS thruster for testing in collaboration with Aerojet-Sacramento.

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

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