EFFECTIVE THERMAL CONDUCTIVITY OF HIGH TEMPERATURE INSULATIONS FOR REUSABLE LAUNCH VEHICLES... NASA/TM-1999-208972... MAR. 26, 1999 PDF Download
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Kamran Daryabeigi
Publisher:
ISBN:
Category : Fibrous composites
Languages : en
Pages : 38
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Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781723721755
Category : Science
Languages : en
Pages : 36
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Book Description
An experimental apparatus was designed to measure the effective thermal conductivity of various high temperature insulations subject to large temperature gradients representative of typical launch vehicle re-entry aerodynamic heating conditions. The insulation sample cold side was maintained around room temperature, while the hot side was heated to temperatures as high as 1800 degrees Fahrenheit. The environmental pressure was varied from 0.0001 to 760 torr. All the measurements were performed in a dry gaseous nitrogen environment. The effective thermal conductivity of Saffil, Q-Fiber felt, Cerachrome, and three multi-layer insulation configurations were measured.Daryabeigi, KamranLangley Research CenterTHERMAL CONDUCTIVITY; MULTILAYER INSULATION; REUSABLE LAUNCH VEHICLES; REENTRY EFFECTS; THERMAL INSULATION; AERODYNAMIC HEATING; TEMPERATURE GRADIENTS; NITROGEN; THERMAL ANALYSIS; REENTRY SHIELDING; TEMPERATURE EFFECTS
Author:
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 372
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Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781792756658
Category :
Languages : en
Pages : 34
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Multilayer insulations (MIs) which will operate in the 500 to 1000 C temperature range are being considered for possible applications on aerospace vehicles subject to convective and radiative heating during atmospheric entry. The insulations described consist of ceramic fibers, insulations, and metal foils quilted together with ceramic thread. As these types of insulations have highly anisotropic properties, the total heat transfer characteristics must be determined. Data are presented on the thermal diffusivity and thermal conductivity of four types of MIs and are compared to the baseline Advanced Flexible Reusable Surface Insulation currently used on the Space Shuttle Orbiter. In addition, the high temperature properties of the fibers used in these MIs are discussed. The fibers investigated included silica and three types of aluminoborosilicate (ABS). Static tension tests were performed at temperatures up to 1200 C and the ultimate strain, tensile strength, and tensile modulus of single fibers were determined. Kourtides, Demetrius A. and Pitts, William C. and Araujo, Myrian and Zimmerman, R. S. Ames Research Center NASA-TM-100059, A-88059, NAS 1.15:100059 RTOP 506-43-31...
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Category :
Languages : en
Pages :
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723368707
Category :
Languages : en
Pages : 24
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Sample titles of the space shuttle reusable surface insulation was subjected alternately to simulated mission heating and either real or simulated environmental exposure for up to 34 cycles. The coating cracked as a result of exposure to high temperature and moisture conditions, and insulation with cracked coatings absorbed significant quantities of water in the launch-pad environment. Cracking was a complex function of time, temperature, and moisture exposure. Cracked coatings remained adherent to the insulation for up to 24 cycles past initial cracking. Ransone, P. O. and Morrison, J. D. and Minster, J. E. Kennedy Space Center; Langley Research Center NASA-TM-80071, L-12962 RTOP 506-16-43-11
Author: Paul E. Purser
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 534
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Author: Robert Cahn
Publisher: Springer Science & Business Media
ISBN: 9401105898
Category : Technology & Engineering
Languages : en
Pages : 333
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Book Description
Conventional materials, such as nickel based alloys, will not be able to match the required performance specifications for the future generation of high temperature materials. This book reviews the characteristics and potential of a wide range of candidate superalloy replacements, such as ceramics, intermetallics, and their composites. Particular attention is devoted to the problems of processing and design with these materials.
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Category : Hoosier National Forest (Ind.)
Languages : en
Pages : 2
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