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ACCOMPLISHMENTS

Oxidation Resistant Rocket Thrusters for High Performance Propellants. S mall B usiness I nnovation R esearch. Ceramic Composites, Inc. Millersville, MD. INNOVATION. Chemical vapor infiltration process to fabricate low-cost, functionally graded ceramic matrix composites.

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ACCOMPLISHMENTS

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  1. Oxidation Resistant Rocket Thrusters for High Performance Propellants Small Business Innovation Research Ceramic Composites, Inc. Millersville, MD INNOVATION Chemical vapor infiltration process to fabricate low-cost, functionally graded ceramic matrix composites • ACCOMPLISHMENTS • Developed rapid chemical vapor infiltration (CVI) process that leads to reduction in processing time and higher matrix densities. Fabrication times reduced by a factor of seven with up to a ten fold reduction in the fabrication cost • Rapid CVI leads to directional matrix growth and to functional grading through the fiber preform. Lightweight C(f)/Cgraded Ceramic Matrix Composites (CMCs) were fabricated which behave like Re or HfC, with density of less than 3g/cm3 • Thrust cells tests with O2 & H2 propellants at operating conditions for 30 seconds showed no erosion at the throat • Tested components in air at 4300F for 6 minutes. Excellent thermal stability was shown Functionally graded CMC thrust cell during evaluation at NASA Glenn • GOVERNMENT/SCIENCE APPLICATIONS • Hypersonic vehicle propulsion components are presently being evaluated under the DARPA HyFly Program • This new family of lightweight materials will provide oxidation and erosion resistance for next generation NASA and DoD propulsion applications • Divert and attitude control propulsion thrusters are presently being tested under BMDO and AF programs • COMMERCIALIZATION • Patent applied for February 2000-Docket Number 1388 • Received $140K Phase III from MSFC • Collaborating with commercial partners to develop components for liquid and solid Divert & Attitude Control System (DACS) and for flightweight, scramjet systems Glenn Research Center Marshall Space Flight Center Materials 3-079 1993 Phase II, NAS3-27272, 1/02 NASA GRC Contact – Steve Schneider NASA MSFC Contact – Pete Valentine Company Contact – Mark Patterson

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