This is my rap, it's up to you if you like it or not, but this is for all the people who never had a chance. Life sucks and then you die, you have some good moments in your life, but they're hardly worth writing about. I hope ya'll like it..
Topic: RDX Einir
Two field screening methods were developed to determine TNT and RDX in groundwater. Both methods rely on solid phase extraction to remove analytes from the water and effect preconcentration. For the first method, a 500-mL water sample is passed through a 3-mL solid phase extraction cartridge packed with HayeSep R. TNT and RDX are then eluted from the cartridge with acetone and the extract divided into two portions. One portion of the extract is reacted with acetic acid and zinc to convert RDX...
Topics: DTIC Archive, Jenkins, Thomas F, COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH, *WATER...
This project resulted in development and proof-of-concept laboratory testing of cost-effective technology to immobilize and biodegrade energetic compounds (TNT, RDX, HMX, and breakdown products) released as residues at firing ranges to prevent their migration to groundwater. The technology is comprised of a sorbent material to immobilize newly generated explosives residues at the soil surface, and a biostimulant to enhance the biotransformation and biodegradation of the explosive compounds...
Topics: DTIC Archive, Steffan, Robert, SHAW ENVIRONMENTAL INC LAWRENCEVILLE NJ, *EXPLOSIVES, *SORPTION,...
Pyrolysis gas chromatography Fourier transform infrared spectroscopic (GC-FTIR) techniques are being used to measure the distribution of both permanent gases and less volatile products from the pyrolysis of a Naval Weapons Center (NWC), China Lake, LOVA propellant formulation series containing HMX or RDX, the binders HTPB, GAP, BAMO/AMMO, and BAMO/THF, and the plasticizers BTTN and TMETN. The data obtained will be correlated with NWC time-to-ignition data to obtain information on the...
Topics: DTIC Archive, Shaw, Frederick J, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
This exploratory study performs preliminary ground work towards identifying adducts formed between DNA and metabolically activated trinitrotoluene (TNT) intermediates for potential assessment of their applicability as biomarkers of environmental contamination. Chromatographic comparisons between control and TNT-adducted hydrolysates allowed the tentative identification of two TNT-adducted nucleotides. Chromatographic profiles of TNT-adducted DNA hydrolysates featured these compounds eluting in...
Topics: DTIC Archive, Harvey, Scott D., DEPARTMENT OF ENERGY RICHLAND WA RICHLAND OPERATIONS OFFICE,...
Decades of military activity on live-fire training ranges have resulted in the contamination of land and groundwater by recalcitrant high explosives, particularly TNT and RDX. Transgenic grass cultivars that provide resilience, rapid establishmentand good coverage have been developed for use on live-fire training ranges that remediate TNT and RDX contaminated soil.
Topics: DTIC Archive, Bruce,Neil C, University of California Los Angeles United States, tnt, RDX, grasses,...
High nitrogen energetic materials with astonishing thermal behaviors and performances were synthesized by different metathesis reactions. Particularly the new compound triaminoguanidinium 1-methyl-5-nitriminotetrazolate (TAG-1 Me-AtNO2, 4) shows great explosion performance and may be an alternative to commonly used and toxic RDX. An improved synthesis for the promising energetic compound 4 is also presented. The new compound TAG2-OD (trianinoguanidinium 3,3'-bis-1,2,4-oxadiazol-5-onate, 7) with...
Topics: DTIC Archive, LUDWIG-MAXIMILIANS UNIV MUNICH (GERMANY) DEPT OF CHEMISTRY AND BIOCHEMISTRY, *HIGH...
Laser-induced breakdown spectroscopy is a promising approach for explosive residue detection, but several limitations to its widespread use remain. One issue is that the emission spectra of the residues are dependent on the substrate composition because some of the substrate is usually entrained in the laser induced plasma and the laser material interaction can be significantly affected by the substrate type. Here, we have demonstrated that despite the strong spectral variation in...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH...
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Topics: manualzz, manuals, Acura 2014 RDX REMOTE CONTROL manual, 2014 RDX REMOTE CONTROL pdf download, 2014...
We summarize three research areas that have focused on surface dynamics associated with fracture and UV laser bombardment of materials. These studies have been based on our capabilities to a) detect and characterize particle release from surfaces on fast time scales, and b) to obtain high resolution topographical information utilizing scanning tunneling and atomic force microscopy. Three principle areas of study have been fracto-emission, scanning tunneling microscopy studies of fracture...
Topics: DTIC Archive, Dickinson, J T, WASHINGTON STATE UNIV PULLMAN, *FRACTURE(MECHANICS), *PARTICLES,...
Experimental data on the dependence of velocity of detonation on charge diameter, V(d), of unconfined cylindrical charges of the underwater explosives, PBXW-115 (Aust), PBXN-111 and Composition H-6, and of Composition B, the explosive charge fill offered by Nordic Defence Industries for the Danish Mine Disposal Charge, Damdic, are given. These data are analysed in terms of the previously-reported empirical relationship between the V(d), the detonation velocity at infinite charge diameter (D*)...
Topics: DTIC Archive, Whelan, D. J., DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA),...
The Army EQT Ordnance Environmental Program (OEP) is dedicated to finding replacements for substances causing environmental and/or occupational risks to health. The Army has developed new experimental explosives to be less toxic than RDX yet with similar power and sensitivity. The purpose of this Toxicology Study was to examine the mutagenic potential of TAG-MNT using a novel high throughput Xenometrix MPF(Trademark) Ames assay introduced at the USAPHC (Prov) Directorate of Toxicology. TAG-MNT...
Topics: DTIC Archive, ARMY PUBLIC HEALTH COMMAND ABERDEEN PROVING GROUND MD, *TOXICOLOGY, *RDX,...
The primary objective of this study was to determine the extent to which TNT and RDX concentrations are reduced by composting under controlled conditions in the laboratory over a period of six weeks. A second objective was to determine if bench-scale composting studies accurately simulate the activity of a larger-scale compost by comparison of parallel studies monitoring TNT and RDX disappearance in laboratory scale (50 g dry weight) and greenhouse (10 kg dry weight) composts. An additional...
Topics: DTIC Archive, Isbister, Jenefir D., ATLANTIC RESEARCH CORP ALEXANDRIA VA, *WASTE DISPOSAL,...
Due to past operations, soils at some military installations have been contaminated with explosives. Past military operations have included production, testing, and disposal of explosive products. This report presents results of a study conducted at the Picatinny Arsenal, which was established in the 1800's. Production of explosives at the site has ceased, but as a result of the past activities, contaminants are migrating into the groundwater due to contaminant transport from the soils. Two...
Topics: DTIC Archive, Fleming, Elizabeth C., ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS...
As an alternative to other groundwater extraction and surface treatment techniques, phytoremediation systems are currently being evaluated by civilian and military administrators for their ability to enhance removal of potentially toxic or mutagenic munitions materiel such as 2,4,6-trinitrotoluene (TNT), hexahydro-l ,3,5-trinitro-l ,3,5-triazine (RDX), and their degradation products. To guide selection of aquatic plants for use in demonstration phytoremediation lagoons at the Milan Army...
Topics: DTIC Archive, Best, Elly P., ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL...
To develop a comprehensive model of nitramine propellant ignition and combustion, the appropriate numerical analysis was developed to solve both transient and steady state combustion, including detailed finite rate chemical kinetics, thermodynamic phase transition, and sub-surface reactions. The model was advanced to predict ignition phenomena. Modeling work was complemented by conducting various experiments. Using fast thermolysis, significant accomplishments were made in studies of the...
Topics: DTIC Archive, Kuo, K. K., PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF NUCLEAR ENGINEERING,...
An evaluation of a new grade of CXM-7, the explosive component of PBXN-109, was conducted at DSTO as R & D support to ADI Ltd, the sub-contractor for the manufacture of the Penguin ASM warhead. Tests were performed to characterise the material's physico-chemical and sensitiveness properties. The processing properties of PBXN-109 incorporating this grade of CXM-7 were also evaluated and the explosive performance properties were determined. Testing showed the new CXM-7 to be contaminated with...
Topics: DTIC Archive, Dexter, Richard M, DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION SALISBURY (AUSTRALIA)...
This final product describes the work performed at USC in fulfillment of a research project for DTRA. The objective is to perform first-principles based and experimentally validated, atomistic simulations of reactive nanosystems involving multi million atoms to achieve atomistic-level understanding and predictive power for designing advanced and insensitive nanostructured energetic materials. The study will focus on reactive and mechanical behavior of Al nanoparticles as well as...
Topics: DTIC Archive, UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF COMPUTER SCIENCE,...
The degradation of pink water compounds in soil was studied. A simulated pink water containing TNT, RDX, HMX and 2,4-DNT was continuously applied to a series of soil columns at different flow rates, with and without carbon supplementation. Concentrations of TNT, RDX, HMX, total organic carbon, nitrates, nitrites, ammonia, pH, oxidation-reduction potential, and biotransformation products were monitored on a weekly basis. The results indicate that land treatment or land farming of pink water...
Topics: DTIC Archive, Greene, Barry, ARMY NATICK RESEARCH AND DEVELOPMENT CENTER MA, *WATER TREATMENT,...
Destruction of TNT, RDX, HMX, TAX, and SEX by ultraviolet (UV) radiation and by ozone has been studied in the batch mode. Ultraviolet radiation alone is effective for removal of the nitramines, but not TNT, while ozone alone does not react readily with any of the munitions. Combined UV-ozone treatment is effective for destruction of TNT. An analysis of power requirements suggests that UV treatment in the tertiary mode may be useful for destruction of nitramines in wastewater, while combined...
Topics: DTIC Archive, Burrows, W. D., ARMY MEDICAL BIOENGINEERING RESEARCH AND DEVELOPMENT LAB FORT DETRICK...
The characterization of Department of Defense (DoD) training lands for explosives residues involves sampling and analyzing soil samples collected at firing points and impact areas. Laboratory instruments used for this analysis are susceptible to accumulating high concentrations of these compounds, thus possibly requiring reanalyzing. By using the Expray Explosives Detection Kit to determine the approximate concentration of explosives compounds prior to analysis, soil extracts can be diluted to...
Topics: DTIC Archive, Bjella, Kevin L, ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS...
A theoretical analysis of the proposed insensitive high energy density material (IHEDM) 2- (nitroaminomethylene)-4,5-dinitrocyclopenta-3,5-diene-1,3-di-nitroamine (NDDN) is reported. A Density Functional Theory (DFT) study was performed in order to determine the optimized structure and stability, as well as thermochemical aspects of NDDN. All calculations were performed using the Gaussian03 software with the Gaussview graphical user interface. Normal modes of vibration and heat of detonation of...
Topics: DTIC Archive, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ...
Cyclic nitramines such as HMX and RDX are energetic materials used in propellants and explosives. One of the keys to understanding the ignition and combustion of these compounds is a characterization of the pathways involved in their unimolecular decomposition. This information is difficult to obtain since the utility of energetic materials is based on their propensity to undergo extremely rapid, exothermic reactions. Moreover, functionally useful nitramines may decompose via a number of...
Topics: DTIC Archive, Sausa, R C, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD, *THERMAL...
The Department of Defense (DoD) has custody and responsibility for human safety and environmental stewardship for coastal ranges,many of which have underwater sites that are known to contain underwater military munitions (UWMM), such as discarded military munitions and unexploded ordnance, as a result of historic military activities. In addition to explosive blast (safety) considerations, regulators are increasingly concerned about potential ecological impacts of MC on the marine environment....
Topics: DTIC Archive, Rosen,Gunther, SPAWAR Systems Center Pacific San Diego, munitions, TNT, rdx,...
The complexing behavior of energetic materials has begun to emerge as a subject of importance to those involved in the formulation of explosive and propellant compositions. Casting, rheological, and detonation or burning properties of compositions can be affected by the incorporation, deliberately or accidentally, of complexes involving energetic compounds. All too often the nature of the forces which bind the components of the complex is not understood, and cannot be exploited. This...
Topics: DTIC Archive, Abel, James E., ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ LARGE CALIBER...
Soil contamination was identified at more than 21,000 sites among Department of Defense (DoD) installations (Bridges and Whaley, 1997). By 2001, the number of known waste sites on current and former DoD installations in the United States exceeded 28,000. Many of these sites are associated with military operations that involve munition manufacturing, disposal, testing, and training contain elevated levels of explosives and related materials in soil. Concentrations of explosives in soil have been...
Topics: DTIC Archive, ARMY EDGEWOOD CHEMICAL BIOLOGICAL CENTER APG MD, *CONTAMINANTS, *EXPLOSIVES, *SOILS,...
Topics: DTIC Archive, ARMY CENTER FOR HEALTH PROMOTION AND PREVENTIVE MEDICINE APG MD HEALTH EFFECTS...
The Super Small-Scale Cookoff Bomb (SSCB), like the Small-Scale Cookoff Bomb (SCB), was developed to provide a means for predicting the response of an ordnance item to a fast or slow cookoff by comparing an empirical relationship to the severity of cookoff reaction in a laboratory level explosive sample and the same explosive in an ordnance item during a field test. Whereas the SCB utilizes 600 grams, the SSCB requires only 20 grams. The SSCB will test any explosive whose critical diameter for...
Topics: DTIC Archive, Pakulak, Jr., Jack M., NAVAL WEAPONS CENTER CHINA LAKE CA, *TEST EQUIPMENT,...
A method is described, using high performance liquid chromatography, to determine quantitatively hexahydro-1, 3, 5-trinitro-s-triazine (RDX) and octahydro-1, 3, 5, 7-tetranitro-s-tetrazocine (HMX) in a mixture and as propellant ingredients. Separations are achieved on a Micro Pak-CN column, 250- mm long x 2.1-mm internal diameter, using a mobile phase of 30-percent methylene chloride/20-percent acetonitrile/50-percent hexane. Under these conditions, the two compounds are separated in...
Topics: DTIC Archive, Doali, J. O., ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD, *LIQUID...
Calculations of the second moments of Nuclear Quadrupole Resonance (NQR) signals are presented in this report. Numerical computations are performed for two explosive materials: cyclotrimethylene-trinitrarnine, RDX, and cyclotetramethylene, Beta-HMX. The report includes a discussion of vector and tensor analysis necessary for performing calculations in the nonorthonormal coordinate systems. The basic theory for calculations of second moments is described and the procedure for numerical...
Topics: DTIC Archive, Snowel, Jolanta M., NAVAL RESEARCH LAB WASHINGTON DC GARROWAY SECTION, *QUADRUPOLE...
The primary purpose of this research has been to investigate the lattice and molecular dynamics of RDX by observing the effects of both slow and rapid heating on the vibrational modes of RDX, and to determine if a thermally induced phase transition to the unstable polymorph can be observed spectroscopically. A laser Raman investigation of octahydro-1-3-5-7-tetranitro-1-3-5-7-tetrazocine (HMX), the eight-member ring analog of RDX, has shown that thermally induced phase transitions can be...
Topics: DTIC Archive, Sergio,Stephen T, DELAWARE UNIV NEWARK DEPT OF CHEMISTRY, *RDX, *POLYMORPHISM, PHASE...
The preparation and sensitivity of explosive formulations prepared from RDX and an emulsifiable polyethylene wax are described. The compaction of these explosive compositions, the sensitivity of the resultant charges to shock and their velocity of detonation are also discussed. (Author)
Topics: DTIC Archive, Wilson,William S, MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA), *CHEMICAL...
A method of analysis for nitroglycerine (NG) in soil and on the surfaces of mortar fins (a common range scrap material) was developed using a field-portable gas chromatograph system. The method combines quick and simple sample preparation procedures with a rapid gas chromatographic (GC) analysis using a thermionic ionization detector (TID) that is selective for compounds containing nitro (NO2) functional groups. Very good agreement was observed among NG values established for splits of sample...
Topics: DTIC Archive, Hewitt, Alan D, ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS...
A method for the analysis of TNT, RDX and HMX explosives in soils and sediments has been developed. It consists of methanol extraction followed by reversed-phase high performance liquid chromatography using 10% acetonitrile/40% methanol/50% water as the eluant. This method was used to study the effect of various drying techniques upon the recovery of TNT, RDX, and HMX from soil and sediment samples contaminated with high (%) and low (micron g/g) levels of these explosives. For highly...
Topics: DTIC Archive, Cragin, J. H., COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH, *EXPLOSIVES,...
Performance tests were conducted to determine the capability of granular activated carbon (GAC) to adequately treat pink water (munitions wastewater) from Army ammunition plants (AAPs). Comparative isotherm tests were conducted with five GACs to recommend an optimized grade for pink water treatment and to study temperature and compositional effects. Target effluent criteria of 0.04 mg/L for trinitrotoluene (TNT), 0.03 mg/L for cyclotrimethylenetrinitramine (RDX) or...
Topics: DTIC Archive, Hinshaw, Gary D, MIDWEST RESEARCH INST KANSAS CITY MO, *MILITARY FACILITIES,...
The aluminized explosive H-6 was developed in the USA to produce an explosive filling based on RDX/TNT but with enhanced blast characteristics. Currently H-6 is made in Australia at St Marys Munitions Filling Factory (MFF) New South Wales, as a fill for Mk 82 and Mk 84 bombs. H-6 also has wide usage in the USA and UK as a torpedo filling and consequently is a potential candidate for a similar role in Australia. This report describes an investigation to characterize the physical nature of cast...
Topics: DTIC Archive, McVay, L, MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA), *FILLING, *ALUMINIZED...
A series of nitramine, triple-base, and double-base propellants in lots with flame temperatures of 2,700, 3,000 and 3,300K were tested for relative erosivity in vented chambers at BRL, Princeton University and the Large Caliber Weapons Systems Laboratory (LCWSL). During initial testing, the BRL results suggested that the nitramine propellants were no more erosive then their double- or triple-base counterparts. The Princeton experiments concluded the opposite. The LCWSL results suggested the...
Topics: DTIC Archive, Kaste, R P, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD, *GUN PROPELLANTS,...
Recent detonation velocity (D) - loading density (Rho sub 0) data for pure explosives have been reviewed and preferred linear D-Rho sub 0 curves selected. The additivity law used was quite successful in both ranges with the exception of high porosity PETN mixtures. The Urizar method of prediction was satisfactory in the low porosity range, but unacceptable in the high porosity range for both pure and mixed high explosives (HE). The Kamlet method was satisfactory for 13 of 15 HE at Rho sub 0 =...
Topics: DTIC Archive, Price, Donna, NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD, *DETONATIONS, *HIGH...
A protocol was defined for the preservation of 12 munitions (Dinitrophenol DNP; Cyclotrimethylene trinitramine, RDX; 1,3,5-Trinitrobenzene, TNB; 1,3-Dinitrobenzene, DNB; 2,4-Dinitrotoluene, 2,4-DNT; Trinitrotoluene, TNT; 2,4,6-Trinitrophenylmethylnitramine, Tetryl; Diphenylamine, DPA; Nitrobenzene, NB; 2,6-Dinitrotoluene, 2,6-DNT; Nitroglycerin, NG; and Picric Acid, PA) in water samples. The samples were preserved by adding acetonitrile to achieve a 10% solution; the adjusting of the pH to 3.5...
Topics: DTIC Archive, Miller, Hope H., MIDWEST RESEARCH INST KANSAS CITY MO, *EXPLOSIVES, *WATER ANALYSIS,...
Destruction of TNT, RDX, HMX, SEX, and tAX by ultraviolet (UV) radiation and hydrogen peroxide has been studied in the batch mode. Ultraviolet radiation was effective for degrading all compounds when treated together. When treated individually with UV radiation, only TNT persisted. Hydrogen peroxide did not react with any of the munitions. However, UV radiation in combination with 0.01 percent hydrogen peroxide increased the rate of destruction for each compound. Hydrogen peroxide...
Topics: DTIC Archive, Noss, C. I., ARMY MEDICAL BIOENGINEERING RESEARCH AND DEVELOPMENT LAB FORT DETRICK...
The final phase of study into RDX-based formulations suitable for replacement of tetryl in Australian ordnance is described. Three formulations using readily available AC629 emulsifiable polyethylene wax and processible on Australian production equipment are identified. It is recommended that pilot batch production and qualification of RDX/AC629 98.75:1.25 for leads and small pellets, RDX/AC629 96.5:3.5 for large boosters and RDX/AC629/zinc stearate/graphite 98.0:1.25:0.5:0.25 for high...
Topics: DTIC Archive, Spear, Robert J, MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA), *RDX, AUSTRALIA,...
We present a detailed description of the development, implementation, and application of a computer program to calculate the detonation parameters of condensed phase explosives. The code is based on Mader's BKW chemical equilibrium code, but contains important new features. A new algorithm to calculate the minimum in the free energy of the product composition has been included. This is a probabilistic algorithm, based on the method of Benke and Skinner, and its inclusion ensures that the true...
Topics: DTIC Archive, Borg, Rodney A., DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA),...
Aptamers are nucleic acid-based reagents that bind to target molecules with high affinity and specificity. However, methods for generating aptamers from random combinatorial libraries (e.g., SELEX) are often labor-intensive and time-consuming. To address this problem, we have recently demonstrated the microfluidic SELEX (M-SELEX) technology that can accelerate aptamer isolation by enabling highly stringent selection conditions through the use of very small amounts of target molecules (X. Lou et...
Topics: DTIC Archive, CALIFORNIA UNIV SANTA BARBARA, *DETECTORS, *DNT, *RDX, BIOLOGICAL DETECTION, CHEMICAL...
This analysis covers a field demonstration of windrow composting to biodegrade explosives-contaminated soils. The demonstration was conducted from January 1992 to January 1993 to provide information for a full-scale remedial design.
Topics: DTIC Archive, WESTON (ROY F) INC WEST CHESTER PA, *BIODEGRADATION, *SOIL REMEDIATION, ARMY...
Natural attenuation as a remedial alternative may be appropriate where natural processes are sufficient to protect receptors of concern. The objectives of this project were to demonstrate natural attenuation of explosives at an Army site, optimize groundwater monitoring procedures to generate reliable trends in explosives concentrations over time, evaluate the significance of site capacity on the ultimate fate and transport at the site, apply biomarkers and stable isotopes as monitoring tools,...
Topics: DTIC Archive, Pennington, Judith C., ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS...
The purpose of this research is to determine mechanisms through which hexahydro-1-nitroso-3,5-dinitro-1,3,5-triazine (MNX), environmental degradation product of high energetic munition hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), causes persistent anemia in the rat. We have hypothesized MNX targets hematopoeitic stem cells and, like other myelosuppressive chemicals, will be fibrogenic to the bone marrow. Findings of this period are: 1) additional MNX suppressive effects on peripheral blood...
Topics: DTIC Archive, Meyer, Sharon A, LOUISIANA UNIV AT MONROE, *RDX, *ANEMIAS, RATS, TOXICITY, NITROGEN...
We use the recently developed reactive force field ReaxFF with molecular dynamics to study thermal induced chemistry in RDX [cyclic-[CH2N(NO2)]3] at various temperatures and densities. We find that the time evolution of the potential energy can be described reasonably well with a single exponential function from which we obtain an overall characteristic time of decomposition that increases with decreasing density and shows an Arrhenius temperature dependence. These characteristic timescales are...
Topics: DTIC Archive, Strachan, Alejandro, CALIFORNIA INST OF TECH PASADENA MATERIALS AND PROCESSES...
A combination of Sphagnum peat moss and crude soybean oil (PMSO) was examined as an in place treatment option for reducing the transport of dissolved explosives from munition residues on active training ranges. An evaluation was performed using outdoor ex situ soil plots at the Massachusetts Military Reservation (MMR) in MA. The study was directed at measuring the reduction in the flux of explosive compounds (i.e., RDX, HMX, TNT) from freshly deposited Composition B detonation residues into the...
Topics: DTIC Archive, SHAW ENVIRONMENTAL INC LAWRENCEVILLE NJ, *SOIL REMEDIATION, *HMX, *MILITARY...
A kinetic model of a laser-induced breakdown spectroscopy (LIBS) plume of cyclotrimethylenetrinitramine (RDX) was developed for the analysis of processes responsible for the LIBS signature of explosives. Air and argon were considered as buffer gases. The model includes a set of processes involving ion chemistry, as well as excitation, ionization, and other processes affecting neutral and ion species. Modeling results show that the overall reaction process can be considered a two-stage process....
Topics: DTIC Archive, NATIONAL INST OF STANDARDS AND TECHNOLOGY GAITHERSBURG MD, *RDX, *PLUMES, *KINETICS,...
The traveling charge gun propulsion concept is being explored at the Ballistic Research Laboratory. A traveling charge is one in which the propellant is attached to the projectile, and for which burning rates in the range of 100- 500 m/s are required. The role of borohydride compounds in very high burning rate (VHBR) materials has been studied using two nitramines (cyclotrimethylene trinitramine, or RDX, and cyclotetramethylene tetranitramine, or HMX) and three boron compounds (the potassium...
Topics: DTIC Archive, Kaste, Pamela J, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD, *EXPLOSIVE...
