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Download Condensed Phase Processes During Solid Propellant Combustion V Further Observations On Depth Profiling Of Burned Surfaces Of Xm39 And M43 Propellants full books in PDF, epub, and Kindle. Read online Condensed Phase Processes During Solid Propellant Combustion V Further Observations On Depth Profiling Of Burned Surfaces Of Xm39 And M43 Propellants ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
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ISBN 13 :
Total Pages : 994 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (227 download)
Download or read book Condensed-Phase Processes During Solid Propellant Combustion. V. Further Observations on Depth Profiling of Burned Surfaces of XM39 and M43 Propellants written by and published by . This book was released on 1996 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Samples of XM39 and M43 propellants that have been self-extinguished at low pressures have been examined under a Scanning Electron Microscope (SEM). The results of this examination suggest that the surface layers of burning HMX/RDX propellants consist of a thin, smooth layer presumably made up of binder and its decomposition products. This layer overlies a thicker layer of crystalline, bubble-containing material that is presumably mostly solidified or recrystallized (liquified during combustion) RDX oxidizer. Photoacoustic Fourier Transform Infrared (FTIR) spectra of some burned/extinguished samples of XM39, JA2, and RDX are also reported and discussed. Based on our results to date, presented in this and previous reports, some suggestions for modelers of nitramine propellant combustion are presented. It is suggested that, if practicable, formation and subsequent decomposition of nitrosoamines, such as MRDX and DRDX, should be included in the condensed-phase chemistry models of deflagration of RDX and of RDX-based propellants. Also, the mathematical framework should include provision for formation and growth of bubbles in the liquid layer as a result of both thermal decomposition and vaporization of RDX.
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ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.3/5 (243 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (227 download)
Download or read book Condensed-Phase Processes During Solid Propellant Combustion. 3. Preliminary Depth-Profiling Studies on XM39, JA2, M9, M30, and HMX2 written by and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes preliminary depth-profiling studies on the chemical changes in the burned layers of propellant samples that have been burned in air, then quenched by dropping them into water. The changes studied described here are mainly those observable by infrared spectroscopy using an infrared microscope. Depth-profiling is obtained either by examining the cross section of a burned propellant sample or by abrasive blasting small amounts of material from the burned surface and examining the remaining surface in the infrared microscope. The propellants and compositions studied include XM39, JA2, M9, M30, and HMX2. For the nitramine-binder compositions XM39 and HMX2, the surface layers seem to consist of a layer of molten oxidizer (RDX or HMX) tens to hundreds of micrometers thick, overlaid by a 10- or 20-micrometer-thick layer of binder and/or its decomposition products. In the case of the nitrate ester compositions JA2 and M9, the chemical changes observable by infrared spectroscopy seem to be very near the surface, within approximately 10 micrometers. This is in agreement with our scanning electron microscope observations and with results in the literature.
Author : K. K. Kuo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (847 download)
Download or read book Fundamentals of Solid Propellant Combustion written by K. K. Kuo and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Naminosuke Kubota
Publisher : John Wiley & Sons
ISBN 13 : 3527693513
Total Pages : 560 pages
Book Rating : 4.5/5 (276 download)
Download or read book Propellants and Explosives written by Naminosuke Kubota and published by John Wiley & Sons. This book was released on 2015-04-23 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the classic on the thermochemical aspects of the combustion of propellants and explosives is completely revised and updated and now includes a section on green propellants and offers an up-to-date view of the thermochemical aspects of combustion and corresponding applications. Clearly structured, the first half of the book presents an introduction to pyrodynamics, describing fundamental aspects of the combustion of energetic materials, while the second part highlights applications of energetic materials, such as propellants, explosives and pyrolants, with a focus on the phenomena occurring in rocket motors. Finally, an appendix gives a brief overview of the fundamentals of aerodynamics and heat transfer, which is a prerequisite for the study of pyrodynamics. A detailed reference for readers interested in rocketry or explosives technology.
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ISBN 13 :
Total Pages : 57 pages
Book Rating : 4.:/5 (227 download)
Download or read book Condensed-Phase Processes During Solid Propellant Combustion. Part 2: Chemical and Microscopic Examination of Conductively Quenched Samples of RDX, XM39, JA2, M30, and HMX-Binder Compositions written by and published by . This book was released on 1992 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Burning propellant samples were quenched, and the burned surfaces were examined microscopically and by chemical analysis. Studies are in progress on a series of propellants including XM39, M30, JA2, RDX, and HMX-polyester compositions. The results to date are consistent with the idea that at least at low pressures (below 2.0 MPa), a liquid layer forms during combustion of most of the propellants, with the possible exception of JA2; scanning electron microscope examination shows the existence of a liquid layer but does not provide evidence of degradation below this layer. The effect of composition and pressure on this liquid layer is discussed. Further gas chromatography mass spectrometry analysis confirms our earlier result that at least in the case of XM39, the stabilizer is depleted considerably in the surface layers, presumably by reaction with nitrogen oxides formed by decomposition of RDX and NC. Further high performance liquid chromatography results confirm our earlier result that for XM39, HMX2, and RDX (which contain the cyclic nitramines HMX and RDX), there is a significant increase in concentration of the mechanistically significant nitrosamines MRDX and DRDX over the very small amounts possibly present as impurities In RDX and HMX. FTIR-PAS results provide evidence for condensed-phase reaction in M30 and JA2.
Author : Michael A. Schroder
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (227 download)
Download or read book Condensed-Phase Processes During Solid Propellant Combustion. 1. Preliminary Chemical and Microscopic Examination of Extinguished Propellant Samples written by Michael A. Schroder and published by . This book was released on 1990 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Burning propellant samples are quenched, and the burned surfaces are examined microscopically and by chemical analysis. Studies are in progress on a series of propellants including XM39, M30, JA2, RDX, HMX, HMX/PU, and HMP/polyester ('HMX2') compositions. Preliminary results on quenched samples of XM39 burned at low pressures show evidence of a liquid layer approximately 100-300 micron thick. SEM examination reveals little if any evidence of degradation below this liquid layer. GCMS analysis shows that the stabilizer is depleted considerably in the surface layers of quenched samples, presumably by reaction with nitrogen oxides formed by decomposition of RDX and NC. HPLC results show that there is a significant increase the very small amounts possibly present as impurities. Keywords: Extinguishment, Quenched-sample analysis, Propellants, Explosives, Nitramines, Nitrate esters, Combustion. (jes).
Author : Kenneth K. Kuo
Publisher : Begell House Publishers
ISBN 13 :
Total Pages : 1114 pages
Book Rating : 4.0/5 ( download)
Download or read book Combustion of Energetic Materials written by Kenneth K. Kuo and published by Begell House Publishers. This book was released on 2002 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book contains state-of-the-art information associated with energetic material combustion. There are twelve topical areas, including: Reaction Kinetics of Energetic Materials (Solid, Liquid, and Gel Propellants); Recycling of Energetic Materials; Combustion Performance of Hybrid and Solid Rocket Motors; Ignition and Combustion of Energetic Materials; Energetic Material Defects and Rocket Engine Flowfields; Metal Combustion; Pyrolysis and Combustion Processes of New Ingredients and Applications; Theoretical Modeling and Numerical Simulation of Combustion Processes of Energetic Materials; Combustion Diagnostic Techniques; Propellant and Rocket Motor Stability; Commercial Applications of Energetic Materials (Airbags, Gas Generators, etc.); and Thermal Insulation and Ablation Processes.
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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (227 download)
Download or read book Condensed-Phase Processes During Solid Propellant Combustion. 4. Chemical and Microscopic Examination of Laser-Irradiated Propellant Samples written by and published by . This book was released on 1995 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surfaces of laser-irradiated gun propellants have been examined by scanning electron microscopy (SEM) and Fourier Transform Infrared (FTIR) microscopy. The results suggest that the laser-irradiated surfaces exhibit chemical and physical changes similar to those exhibited by the burned surfaces of propellant samples, the combustion of which have been quenched short of completion. Some possible implications of this for combustion and for the modelling of laser ignition are discussed. jg p.3.
Download or read book Steady and Transient Performance Prediction of Gas Turbine Engines written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (227 download)
Download or read book Infrared Fiber Optic Diagnostic Observations of Solid Propellant Combustion written by and published by . This book was released on 1993 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on work to develop and demonstrate a diagnostic technique using infrared fiber optics to probe the decomposition processes in burning gun propellant strands. The experiments reported here involve measuring the absorption across an open gap between two embedded fibers as it fills with gaseous decomposition products. Spectroscopic detection is achieved using pairs of bandpass filters. The absorption record can be correlated with readings from embedded thermocouples and with a high resolution video recording of the burn. We have observed N20, a decomposition product of RDX, evolving into the observation volume. The N20 appearance is often an abrupt event. Coupled with evidence that it can occur while the observation region is relatively cool and far from the burning surface (observed in cases involving burning at 6 atm pressure), these observations suggest hypotheses concerning the physical processes in the condensed phases of this propellant, hypotheses including the development of pressurized voids or matrix-trapped bubbles which can release decomposition gases into the unburnt propellant through suddenly opening cracks. The appearance of N20 after the temperature record suggests that melting and decomposition of RDX have begun (observed in 1 atm cases) implies that N20 formation is indeed not an initial step in RDX decomposition under our conditions. Solid propellant combustion, Infrared fiber optic absorption diagnostic.
Author : Naval Surface Weapons Center
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ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.E/5 ( download)
Download or read book NSWC TR. written by Naval Surface Weapons Center and published by . This book was released on 1979 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Von Karman Institute for Fluid Dynamics
Publisher :
ISBN 13 :
Total Pages : 350 pages
Book Rating : 4.:/5 (722 download)
Download or read book Secondary Flows in Turbomachines written by Von Karman Institute for Fluid Dynamics and published by . This book was released on 1975 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium
Publisher :
ISBN 13 : 9789283505297
Total Pages : 0 pages
Book Rating : 4.5/5 (52 download)
Download or read book Aircraft Fire Safety written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Conference Proceedings contains 38 papers presented at the Propulsion and Energetics Panel 73rd Symposium on 'Aircraft Fire Safety' which was held 22 - 26 May 1989 in Sintra, Portugal. The Symposium was arranged in the following sessions: Review of Fire-Related Aircraft Accidents (3); Fire Safety Standards and Research Programmes (6); Aircraft Internal Fires (9); Aircraft External Fires (2); Fire Safety of Military Weapon Systems (3); Fire Hardening by Advanced Materials and Structural Design (8); Passenger Behaviour in Emergency Situations (3); and Passenger Protective Equipment (4). The Technical Evaluation Report and and Addendum are included at the beginning of the Proceedings. Questions and answers of the discussions follow each paper. The last AGARD review on the subject took place in a Specialists' Meeting in 1975, followed by a Working Group Report in 1979 and Lecture Series in 1982. The purpose of the Symposium was a review of the present state-of-the-art and of the last improvements. Although the safety standards in aviation are already very high, there is still room for improvements. They are listed in the Conclusions and Recommendations of the Technical Evaluation Report and in the Addendum.
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher :
ISBN 13 : 9789283506591
Total Pages : pages
Book Rating : 4.5/5 (65 download)
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium
Publisher :
ISBN 13 : 9789283505945
Total Pages : 472 pages
Book Rating : 4.5/5 (59 download)
Download or read book Hypersonic Combined Cycle Propulsion written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium and published by . This book was released on 1990 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
