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The Application of Metal Matrix Composite Materials in Propulsion System ValvesMetal Matrix Composite (MMC) materials have been developed and used in many applications to reduce the weight of components where weight and deflection are the driving design requirement. MMC materials are being developed for use in some propulsion system components, such as turbo-pumps and thrust chambers. However, to date, no propulsion system valves have been developed that take advantage of the materials unique properties. The stiffness of MMC's could help keep valves light or improve life where deflection is the design constraint (such as seal and bearing locations). The low CTE of the materials might allow the designer to reduce tolerances and clearances producing better performance and lighter weight valves. Using unique manufacturing processes allow parts to be plated/coated for longer life and allow joining either by welding or threading/bolting. Additionally, casting of multi part pre-forms to form a single part can lead to designs that would be hard or impossible to manufacture with other methods. Therefore, NASA's Marshall Space Flight Center (MSFC) has developed and tested a prototype propulsion system valve that utilizes these materials to demonstrate these advantages. Through design and testing, this effort will determine the best use of these materials in valves designed to achieve the goal of a highly reliable and lightweight propulsion system. This paper is a continuation of the paper, The Application of Metal Matrix Composite Materials In Propulsion System Valves, presented at the JANNAF Conference held in April, 2002. Fabrication techniques employed, valve development, and valve test results will be discussed in this paper.
Document ID
20040075689
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Laszar, John
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Shah, Sandeep
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Kashalikar, Uday
(Foster-Miller Associates, Inc. Waltham, MA, United States)
Rozenoyer, Boris
(Foster-Miller Associates, Inc. Waltham, MA, United States)
Date Acquired
August 21, 2013
Publication Date
August 29, 2003
Subject Category
Composite Materials
Meeting Information
Meeting: JANNAF 52nd JP Meeting
Location: Las Vegas, NV
Country: United States
Start Date: May 10, 2004
End Date: May 14, 2004
Sponsors: NASA Headquarters, Department of the Air Force, Department of the Navy, Department of the Army
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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