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Microscopical Examination Of Plastic Bonded Explosives
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Book Synopsis Microscopical Examination of Plastic-bonded Explosives by :
Download or read book Microscopical Examination of Plastic-bonded Explosives written by and published by . This book was released on 1997 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polarized Light Microscopy is a powerful technique for the identification of powdered explosives. The authors apply the technique here to the characterization in bulk of composite, plastic-bonded explosives, typically consisting of 95 w/o explosive particulate and 5 w/o polymeric binder. Mounting and polishing techniques are described, along with attendant issues of mount dyeing and some complications of cleaning very soft samples. The microstructures of PBX 9501 (based on cyclotetramethylene tetranitramine, or HMX), PBX 9502 (based on triaminotrinitrobenzene or TATB), and X-0535 (based on diaminotetrazine dioxide, or TZX) are compared and contrasted. Selected case studies are presented in which development of prominent structural characteristics, such as particle size and crack density, are tracked from the starting powders through formulation and pressing to serviceable, formed articles.
Book Synopsis The Forensic Laboratory Handbook by : Ashraf Mozayani
Download or read book The Forensic Laboratory Handbook written by Ashraf Mozayani and published by Springer Science & Business Media. This book was released on 2007-11-08 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and easy-to-read introduction to the work of the modern forensic laboratory. The authors explain in simple language the capabilities and limitations of modern forensic laboratory procedures, techniques, analyses, and interpretations. Here, the interested reader will find an understandable and fascinating introduction to the complex worlds of forensic serology DNA, chemistry, crime reconstruction, digital evidence, explosives, arson, fingerprints, firearms, tool marks, odontology, and pathology. Additional chapters address the problems of assuring quality and seeking trace evidence in the forensic laboratory.
Book Synopsis Plastic Bonded Explosive (PBX) Particle Size Distribution (PSD) Measurements Using an Image Analysis System by :
Download or read book Plastic Bonded Explosive (PBX) Particle Size Distribution (PSD) Measurements Using an Image Analysis System written by and published by . This book was released on 2003 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The slurry process for producing plastic bonded explosives (PBX) has been used for many years. However, until recently the mechanisms involved have not been studied quantitatively to determine the effects of the various control variables. Recently, the effects of operating variables on the final product have been studied; however, no attempt was made to measure particle growth during the slurry process. This study applies an image analysis tool to measure particle size distributions (PSDs) during the slurry process to produce PBX 9501, a specific formulation used in nuclear weapons. The observed PBX 9501 slurry behavior leads away from the typical population balance description of agglomeration, that is, a discrete particle-particle coalescence mechanism. The behavior observed in these experiments indicates that the initial state of the system contains a number of smaller particles clustered together. The cluster then coalesces into a large particle as solvent is removed and the slurry continuously mixed. Other small fragments are picked up and a relatively small amount of growth is observed. A mass transfer model adequately describes solvent removal, and an empirical model is developed to describe the growth behavior in terms of measured process variables. The image system is applied to dried molding powders. The PSD measurement results of the PBX 9501 library lots, historic samples set aside as PBX 9501 lots were accepted from the manufacturer, are also discussed and analyzed. A correlation analysis was conducted to find relationships between the measured PSD and other properties such as bulk density and pressed densities. While no significant correlation was found between the measured PSD and averaged bulk densities for the library lots, significant correlations are found between the measured PSD and pressed density. The final part of the study was to scale-up the PSD measurement capability. Since the large-scale processes are not yet operational, this work makes recommendations for future consideration. Also, some additional small-scale experiments are recommended as well as improvements to the smallscale experimental apparatus.
Book Synopsis Confined Creep Testing of Plastic-Bonded Explosives by :
Download or read book Confined Creep Testing of Plastic-Bonded Explosives written by and published by . This book was released on 2009 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forensic Investigation of Clandestine Laboratories by : Donnell R. Christian, Jr.
Download or read book Forensic Investigation of Clandestine Laboratories written by Donnell R. Christian, Jr. and published by CRC Press. This book was released on 2003-07-28 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clandestine lab operators are not the mad scientists whose genius keeps them pent up in the laboratory contemplating elaborate formulas and mixing exotic chemicals. In fact, their equipment is usually simple, their chemicals household products, and their education basic. Most of the time the elements at the scene are perfectly legal to sell and own. It is only in the combination of all these elements that the lab becomes the scene of a criminal operation. Forensic Investigation of Clandestine Laboratories guides you, step-by-step, through the process of recognizing these illegal manufacturing operations. Then it shows you how to prove it in the courtroom. In non-technical language this book details: How to recognize a clandestine lab How to process the site of a clandestine lab How to analyze evidence in the examination laboratory What to derive from the physical evidence How to present the evidence in court The identification and investigation of a clandestine lab, and the successful prosecution of the perpetrators, is a team effort. A collaboration of law enforcement, forensic experts, scientists, and criminal prosecutors is required to present a case that definitively demonstrates how a group of items with legitimate uses are being used to manufacture an illegal controlled substance. Providing an understanding of how the pieces of the clandestine lab puzzle fit together, this book outlines the steps needed to identify and shut down these operations, as well as successfully prosecute the perpetrators.
Book Synopsis THE DEVELOPMENT OF PLASTIC-BONDED EXPLOSIVES. by :
Download or read book THE DEVELOPMENT OF PLASTIC-BONDED EXPLOSIVES. written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Axial-Torsion Testing Plastic-Bonded Explosives to Failure by :
Download or read book Axial-Torsion Testing Plastic-Bonded Explosives to Failure written by and published by . This book was released on 2009 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Creep Testing Plastic-Bonded Explosives in Uni-axial Compression by :
Download or read book Creep Testing Plastic-Bonded Explosives in Uni-axial Compression written by and published by . This book was released on 2008 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: High fidelity measurements of time-dependent strain in the plastic-bonded explosives LX-17-1 and PBX 9502 have been performed under constant, uni-axial, compressive load using a custom designed apparatus. The apparatus uses a combination of extensometers and linear variable differential transformers coupled with a data acquisition system, thermal controls, and gravitational loading. The materials being tested consist of a crystalline explosive material mixed with a polymeric binder. The behavior of each material is related to the type of explosive and to the percentage and type of binder. For any given plastic-bonded explosive, the creep behavior is also dependent on the stress level and test temperature. Experiments were conducted using a 3 x 3 stress-temperature matrix with a temperature range of 24 C to 70 C and with stresses ranging from 250-psi to 780-psi. Analysis of the data has shown that logarithmic curve fits provide an accurate means of quantification and facilitate a long-term predictive capability. This paper will discuss the design of the apparatus, experimental results, and analyses.
Book Synopsis Large Scale Sample Drop Testing of Castable Plastic Bonded Explosives by : T. E. Loxley
Download or read book Large Scale Sample Drop Testing of Castable Plastic Bonded Explosives written by T. E. Loxley and published by . This book was released on 1964 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests of twelve thin-walled charge containers loaded with seven varied compositions of plastic bonded explosives indicate that five of the seven compositions can sustain, without an explosive or burning reaction, impact of a 336 lb studded weight dropped from a height of at least five feet. The tests conducted offer only limited statistical assurance of exlosive insensitivity due to the small number of samples evaluated. Two compositions were observed to detonate with a drop height of five feet. (Author).
Book Synopsis Microstructural Characterization of Plastic-bonded Explosives by :
Download or read book Microstructural Characterization of Plastic-bonded Explosives written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energetic Materials by : Ulrich Teipel
Download or read book Energetic Materials written by Ulrich Teipel and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incorporation of particular components with specialized properties allows one to tailor the end product's properties. For instance, the sensitivity, burning behavior, thermal or mechanical properties or stability of energetic materials can be affected and even controllably varied through incorporation of such ingredients. This book examines particle technologies as applied to energetic materials such as propellants and explosives, thus filling a void in the literature on this subject. Following an introduction covering general features of energetic materials, the first section of this book describes methods of manufacturing particulate energetic materials, including size reduction, crystallization, atomization, particle formation using supercritical fluids and microencapsulation, agglomeration phenomena, special considerations in mixing explosive particles and the production of nanoparticles. The second section discusses the characterization of particulate materials. Techniques and methods such as particle size analysis, morphology elucidation and the determination of chemical and thermal properties are presented. The wettability of powders and rheological behavior of suspensions and solids are also considered. Furthermore, methods of determining the performance of particular energetic materials are described. Each chapter deals with fundamentals and application possibilities of the various methods presented, with particular emphasis on issues applicable to particulate energetic materials. The book is thus equally relevant for chemists, physicists, material scientists, chemical and mechanical engineers and anyone interested or engaged in particle processing and characterization technologies.
Book Synopsis Energetic Materials Research, Applications, and New Technologies by : Goncalves, Rene Francisco Boschi
Download or read book Energetic Materials Research, Applications, and New Technologies written by Goncalves, Rene Francisco Boschi and published by IGI Global. This book was released on 2017-12-29 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade, there has been an influx in the development of new technologies for deep space exploration. Countries all around the world are investing in resources to create advanced energetic materials and propulsion systems for their aerospace initiatives. Energetic Materials Research, Applications, and New Technologies is an essential reference source of the latest research in aerospace engineering and its application in space exploration. Featuring comprehensive coverage across a range of related topics, such as molecular dynamics, rocket engine models, propellants and explosives, and quantum chemistry calculations, this book is an ideal reference source for academicians, researchers, advanced-level students, and technology developers seeking innovative research in aerospace engineering.
Book Synopsis A Parametric Pressing Study Using a Plastic-bonded Explosive by :
Download or read book A Parametric Pressing Study Using a Plastic-bonded Explosive written by and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressed plastic-bonded explosives, PBXs, are commonly used by defense and private industry. PBX 9501 is composed of HMX crystals held together with a plastic binder 'softened' with plasticizers. The detonation behavior of any explosive is very dependent upon its density, with the desire to have a uniform, high density throughout the explosive component. A parametric study has been performed pressing PBX 9501 hydrostatically and uniaxially. The effects of several pressing parameters on the bulk density and density profile, as well as mechanical properties, have been measured. The parameters investigated include pressure, temperature, number of cycles, dwell time, rest time, sack thickness, and particle distribution and size. Density distributions within the pressed explosives were also compared.
Book Synopsis Evaluation of a Mechanical Property Test for Small Samples of Plastic Bonded Explosives. Period Covered by :
Download or read book Evaluation of a Mechanical Property Test for Small Samples of Plastic Bonded Explosives. Period Covered written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The indirect tension test was evaluated to determine its feasibility for measurements of the mechanical properties of plastic bonded explosives (PBX) samples from coupon compatibility tests and small scale tests used to evaluate new binders for explosives. Tests were run on LX-09, LX-04, LX-14 and RX-03-BB to determine if the dynamic range of the test would be adequate for these materials. The maximum stress ranged from 623 to 4182 kPa for these materials. The effect of test temperature on LX-09 and RX-03-BB was investigated to determine the temperature control required for the test. Tests were conducted to determine if both isostatically and mechanically pressed PBX parts could be used with this test. The data from these series of tests indicate that the indirect tension test will provide useful information about the mechanical strength of PBX's.
Book Synopsis Interfacial Failure in Plastic Bonded Explosives by : Muhammad Iqbal
Download or read book Interfacial Failure in Plastic Bonded Explosives written by Muhammad Iqbal and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plastic Bonded Explosive (PBX) Particle Size Distribution (PSD) Measurements Using an Image Analysis System by : Gregg Kent Sullivan
Download or read book Plastic Bonded Explosive (PBX) Particle Size Distribution (PSD) Measurements Using an Image Analysis System written by Gregg Kent Sullivan and published by . This book was released on 2003 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feasibility Study on Continuous Processing of Castable Plastic-bonded Explosives by :
Download or read book Feasibility Study on Continuous Processing of Castable Plastic-bonded Explosives written by and published by . This book was released on 19?? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
