Stanley R. Levine
Glenn Research Center
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Featured researches published by Stanley R. Levine.
Journal of The European Ceramic Society | 2002
Stanley R. Levine; Elizabeth J. Opila; Michael C. Halbig; James D. Kiser; Mrityunjay Singh; Jonathan A. Salem
Among the ultra-high temperature ceramics (UHTC) are a group of materials consisting of zirconium diboride or hafnium diboride plus silicon carbide, and in some instances, carbon. These materials offer a good combination of properties that make them candidates for airframe leading edges on sharp-bodied reentry vehicles. These UHTCperform well in the environment for such applications, i.e. air at low pressure. The purpose of this study was to examine three of these materials under conditions more representative of a propulsion environment, i.e. higher oxygen partial pressure and total pressure. Results of strength and fracture toughness measurements, furnace oxidation, and high velocity thermal shock exposures are presented for ZrB2 plus 20 vol.% SiC, ZrB2 plus 14 vol.% SiC plus 30 vol.% C, and SCS-9a SiC fiber reinforced ZrB2 plus 20 vol.% SiC. The poor oxidation resistance of UHTCs is the predominant factor limiting their applicability to propulsion applications. # 2002 Elsevier Science Ltd. All rights reserved.
SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2005: Conf.Thermophys in#N#Micrograv;Conf Comm/Civil Next Gen.Space Transp; 22nd Symp Space Nucl.Powr#N#Propuls.;Conf.Human/Robotic Techn.Nat'l Vision Space Expl.; 3rd Symp Space Colon.; 2nd#N#Symp.New Frontiers | 2005
Peter G. Valentine; Timothy W. Lawrence; Michael K. Gubert; Frank S. Milos; Stanley R. Levine; Craig W. Ohlhorst; John R. Koenig
To fulfill President George W. Bush’s “Vision for Space Exploration” (NASA, 2004) — successful human and robotic missions to and from other solar system bodies in order to explore their atmospheres and surfaces — the National Aeronautics and Space Administration (NASA) must reduce the trip time, cost, and vehicle weight so that the payload and scientific experiments’ capabilities can be maximized. The new project described in this paper will generate thermal protection system (TPS) products that will enable greater fidelity in mission/vehicle design trade studies, support risk reduction for material selections, assist in the optimization of vehicle weights, and provide materials and processes templates for use in the development of human‐rated TPS qualification and certification plans.
Journal of Materials Science | 2004
Elizabeth J. Opila; Stanley R. Levine; J. Lorincz
Archive | 1997
Mrityunjay Singh; Stanley R. Levine; James A. Smialek
Archive | 2004
Stanley R. Levine; Elizabeth J. Opila; Raymond C. Robinson; Jonathan Lorincz
Archive | 1990
Stanley R. Levine; Michael J. Verrilli; David J. Thomas; Michael C. Halbig; Anthony M. Calomino; John R. Ellis; Elizabeth J. Opila
The Open Aerospace Engineering Journal | 2010
Elizabeth J. Opila; Jim Smith; Stanley R. Levine; Jonathan Lorincz; Marissa Reigel
Archive | 1992
Narottam P. Bansal; Stanley R. Levine; William A. Sanders
The Open Aerospace Engineering Journal | 2010
Elizabeth J. Opila; Jim Smith; Stanley R. Levine; Jonathan Lorincz; Marissa Reigel
Archive | 1987
Nancy J. Shaw; James A. DiCarlo; Nathan S. Jacobson; Stanley R. Levine; James A. Nesbitt; Hubert B. Probst; William A. Sanders; Carl A. Stearns