| Direct Deposition of Metal (DDM) as a Repair Process for Metallic Military Parts |
20 Jan 2013 |
39 pages |
| Authors:
Martin McDonnell; Guru Dinda; Bruce O'Neill; FOCUS-HOPE DETROIT MI
|
 | In 2005 Focus: HOPE began working on a Technical Area Task to investigate advanced manufacturing in the area of Direct Deposition of Metal (DDM) for the Tank and Automotive Command (TACOM). In 2006, the scope was expanded to include basic research areas of Direct Deposition of Metal applicable to repairing military equipment and Focus: HOPE demonstrated the feasibility of conducting repairs on military equipment using Direct Deposition of Metal (Work ... |
|
| Development and Exploration of Nanoparticle Decorated Carbon Supports (Graphene and Graphene Oxide) for Energy Collection, Storage, and Conversion |
17 Dec 2012 |
9 pages |
| Authors:
Kian P Loh; NATIONAL UNIV OF SINGAPORE
|
| Solution-processible graphene, produced by the chemical exfoliation of graphite, represents a new class of polyaromatic carbon materials that can have superior electrical conduction properties compared to organic materials. Graphene with high surface areas can serve as supports for metal nanoparticles and form an integral component of energy storage or conversion devices such as fuel cells, batteries or photoelectric cells. The surface chemistry and structure of the catalyst support significantly influence ... |
|
| Sulfur Implanted Black Silicon for Metal Semiconductor Metal (MSM) Photodetectors |
Dec 2012 |
18 pages |
| Authors:
Fred Semendy; Greg Meissner; Priyalal Wijewarnasuriya; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| We have investigated a wet chemical process for nanoscale texturing of sulfur-doped silicon (Si) surfaces, which results in substantial suppression of the reflectivity in a broad spectral range, leading to black Si surfaces. The blackened surface was characterized optically and with Veeco micro-profiler. We fabricated metal semiconductor metal (MSM) test devices using the aforementioned black silicon and electrically characterized them for current-voltage (I-V), optical response, zero biased quantum efficiency (QE), ... |
|
| Battlefield-Acquired Immunogenicity to Metals Affects Orthopaedic Implant Outcome |
Oct 2012 |
8 pages |
| Authors:
Nadim J Hallab; RUSH UNIV MEDICAL CENTER CHICAGO IL
|
| The effects of battlefield injuries on the immune system are currently unknown, especially to metals such as shrapnel. Previous studies have link exposure to metal with increased immune responses (allergy). Thus battlefield injuries resulting in increased exposure to metal may sensitize individuals and lead to excessive immune responses to orthopedic implants, which many soldiers will need. The short term goal of this project is to understand whether soldiers with battle ... |
|
| Precision Rolled-Ink Nano-Technology; Development of a Direct Write Technique for the Fabrication of Thin Films and Conductive Elements |
Oct 2012 |
22 pages |
| Authors:
Jr Holmes Larry R; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Direct-writing offers serial or point deposition for the fabrication of two-dimensional linear elements or patterns. A common use for direct write technologies in two-dimensions is the fabrication of sensors, antennas and other conductive circuitry. This article describes the development of a novel, low-cost technique for the direct deposition of conductive elements on multiple substrates. Precision Rolled Ink-Nanoparticle Technology (PRINT), described here, is used to deposit particulate solutions, termed inks in ... |
|
| Polymeric Sensors for Health Monitoring of Composite Structures (Preprint) |
Aug 2012 |
6 pages |
| Authors:
Abhishek K Singh; Huaxiang Yang; Rui Shen; Gusphyl Justin; Ramil M Mercado; Andrew L Zimmerman; LUMIMOVE INC FENTON MO DBA CROSSLINK
|
| Composites are rapidly replacing metals in structural applications due to their ability to outperform metals at significant weight savings. This has resulted in the need for monitoring techniques to prevent catastrophic failures. Crosslink is developing a real-time, light-weight strain/damage sensor system that can be either embedded in or superficially bonded at strategic locations to monitor structural integrity. These sensors utilize inherently conducting polymer (ICP) films. ICP-based sensors do not deteriorate ... |
|
| Architecture and Surface Chemistry of Compound Nanoclusters |
Aug 2012 |
11 pages |
| Authors:
Michael A Duncan; GEORGIA UNIV ATHENS DEPT OF CHEMISTRY
|
| Fundamental studies are conducted on metal atom and oxide nanoparticles to develop new synthetic strategies, to elucidate electronic structure and bonding principles, and to evaluate these materials for applications relevant to the Air Force. Transition metal and main group metal oxide clusters are produced in the gas phase with laser vaporization of solid targets. Molecular beam and mass spectrometry studies on size-selected ions include laser photodissociation measurements to reveal stability ... |
|
| An Investigation of Chitosan for Sorption of Radionuclides |
05 Jun 2012 |
99 pages |
| Authors:
Vanessa E Holfeltz; OREGON STATE UNIV CORVALLIS
|
| Chitosan is a biopolymer resulting from the deacetylation of chitin, the second most abundant biopolymer in nature. Chitosan has been successfully used in systems to remove metal ions and other pollutants from wastewater. Chitosan has shown promise as a sorbent for radionuclides in some aqueous waste streams. |
|
| Identifying Sources of Storm Water Metal Contaminants at Navy Facilities: How Can You Clean It Up If You Don't Know Where It's Coming From? |
24 May 2012 |
28 pages |
| Authors:
Chuck Katz; SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA
|
|
| Super-Absorbent Polymer Gels for Oil and Grease Removal from Metal and Non-Metal Surfaces |
21 May 2012 |
26 pages |
| Authors:
Veera M Boddu; Wayne Ziegler; Tom Torres; Minori Uchimiya; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
|
|
| Metal Residue Deposition from Military Pyrotechnic Devices and Field Sampling Guidance |
May 2012 |
127 pages |
| Authors:
Jay L Clausen; Julie Richardson; Nic Korte; Nancy Perron; Susan Taylor; Anthony Bednar; Patricia Tuminello; William Jones; Shawna Tazik; Michael Walsh; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| Pyrotechnic devices used at military installations as part of routine training activities contain metals such as aluminum, antimony, barium, boron, cerium, chromium, copper, iron, lead, magnesium, manganese, potassium, sodium, strontium, titanium, tungsten, zirconium, and zinc. The US Army's Military Munitions Response Program (MMRP) is responsible for determining whether this use of pyrotechnic devices resulted in an environmental impact because of exceedance of acceptable risk standards. This study examined the metals ... |
|
| Nondestructive Early Detection of Metal Corrosion in Pigmented Coatings with Fluorescent Smart Materials (First-year Report) |
May 2012 |
24 pages |
| Authors:
Joshua A Orlicki; Andre A Williams; Joseph Labukas; John A Escarsega; Brian Placzankis; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Fluorescent dyes were studied in an effort to develop molecules suitable to signal the onset of metal corrosion under a paint or coating. Rhodamine B and fluorescein were chemically modified to determine the effect of steric hindrance and electron withdrawing/donating substituents on the selective binding of these dyes to various metals. Rhodamine B and fluorescein were converted into the corresponding hydrazide to provide a precursor material. The hydrazides were then ... |
|
| Metal Residue Deposition from Military Pyrotechnic Devices and Field Sampling Guidance |
May 2012 |
127 pages |
| Authors:
Jay L Clausen; Julie Richardson; Nic Korte; Nancy Perron; Susan Taylor; Anthony Bednar; Andrew Bray; Patricia Tuminello; William Jones; Shawna Tazik; COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
|
| Pyrotechnic devices used at military installations as part of routine training activities contain metals such as aluminum, antimony, barium, boron, cerium, chromium, copper, iron, lead, magnesium, manganese, potassium, sodium, strontium, titanium, tungsten, zirconium, and zinc. The US Army's Military Munitions Response Program (MMRP) is responsible for determining whether this use of pyrotechnic devices resulted in an environmental impact because of exceedance of acceptable risk standards. This study examined the metals ... |
|
| Aluminum Cluster-Based Materials for Propulsion and Other Applications and Catalysis |
04 Apr 2012 |
18 pages |
| Authors:
Shiv N Khanna; VIRGINIA COMMONWEALTH UNIV RICHMOND
|
| During the current project, we have identified classes of stable cluster motifs for implementation as building blocks of nanoenergetic materials and developed guiding principles for their synthesis. To begin, differing mechanisms that can stabilize clusters were identified. The first refers to crystal field like splitting of electronic shells via geometrical distortions that can lead to stable species at sub-shell fillings. Such a mechanism accounted for the stability of CuAl22- and ... |
|
| Spectral and Spatial Coherent Emission of Thermal Radiation from Metal-Semiconductor Nanostructures |
Mar 2012 |
155 pages |
| Authors:
Shane N McConnell; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The spectral and spatial radiative properties of coherent thermal emission in the mid-infrared and far-infrared through the use of micro-structured and nano-structured metal-semiconductor materials were demonstrated experimentally. Using an implementation of the Rigorous Coupled Wave Analysis (RCWA) numerical technique and Computer Simulation Technology (CST) electromagnetic modeling software, two structures were designed to selectively emit at mid- and far-IR wavelengths: a one-dimensional (1-D) truncated multilayer resonator and a three-dimensional (3-D) hybrid ... |
|
| Demonstration of Improved Technologies for Rehabilitating Metal Roofing in Severely Corrosive Environments |
Mar 2012 |
283 pages |
| Authors:
David M Bailey; L D Stephenson; Ashok Kumar; Katharine Sweeton; Lawrence Clark; Michael W Surratt; Karl Palutke; Alan Meier; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The objective of this project was to successfully demonstrate and evaluate two technologies for extending in place the service life of failed metal roofs on two different buildings at Wheeler Army Airfield, which is located in a severely corrosive marine environment. A polyurea-hybrid coating was applied to a leaking corrugated aluminum-panel roof on a barracks building, and a structural standing-seam metal roofing (SSSMR system) with an innovative sub-purlin framing system ... |
|
| Binary Classification of an Unknown Object through Atmospheric Turbulence Using a Polarimetric Blind-Deconvolution Algorithm Augmented with Adaptive Degree of Linear Polarization Priors |
Mar 2012 |
70 pages |
| Authors:
Mu J Kim; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This research develops an enhanced material-classification algorithm to discriminate between metals and dielectrics using passive polarimetric imagery degraded by atmospheric turbulence. To improve the performance of the existing technique for near-normal collection geometries, the proposed algorithm adaptively updates the degree of linear polarization (DoLP) priors as more information becomes available about the scene. Three adaptive approaches are presented. The higher-order super-Gaussian method fits the distribution of DoLP estimates with a ... |
|
| Microstructure Evolution and Composition Control during the Processing of Thin-gage Metallic Foil (Preprint) |
Feb 2012 |
49 pages |
| Authors:
S L Semiatin; D L Ballard; M E Gross; D W Matson; W D Bennett; C D Bonham; A I Ustinov; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIR METALS CERAMICS AND NONDESTRUCTIVE EVALUATION DIV/METALS BRANCH
|
| The manufacture of thin-gage superalloy and gamma-titanium-aluminide foil products via near-conventional thermomechanical processing (TMP) and two different vapor-deposition methods was investigated. TMP was based on hot-pack rolling of plate and sheet. Foils of the superalloy LSHR and the near-gamma titanium aluminide Ti-45.5Al-2Cr-2Nb made by this approach exhibited excellent gage control and fine two-phase microstructures. The vapor-phase techniques utilized magnetron sputtering (MS) of a target of the desired product composition or ... |
|
| Influences On The Oceanic Biogeochemical Cycling Of The Hybrid-Type Metals: Cobalt, Iron, And Manganese |
Feb 2012 |
300 pages |
| Authors:
Abigail E Noble; MASSACHUSETTS INST OF TECH CAMBRIDGE JOINT PROGRAM IN APPLIED OCEAN SCIENCE AND ENGINEERING
|
| Trace metal cycling is one of many processes that influence ocean ecosystem dynamics. Cobalt, iron, and manganese are redox active trace metal micronutrients with oceanic distributions that are influenced by both biological and abiotic sources and sinks. Their open ocean concentrations range from picomolar to nanomolar, and their bioavailabilities can impact primary production. Understanding the biogeochemical cycling of these hybrid-type metals with an emphasis on cobalt was the focus of ... |
|
| SM and ND Substiturions in YBCO Films Produced through Metal Organic Deposition (Postprint) |
Feb 2012 |
8 pages |
| Authors:
B C Harrison; J Carpenter; and P N Barnes P Klenk; H Fang; C V Varanasi; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
|
| Epitaxial YBa2Cu3O7-x (YBCO) films were produced on non-buffered (100) single crystal LaAlO3 using the metal organic deposition (MOD) method with fluorinated metal acetates. In an effort to enhance the in-field performance of the films, Sm and Nd acetates were fractionally substituted for Y acetate in a series of precursor solutions to incorporate an array of nanoscale flux pinning centers in the post-annealed films. From measurements taken in the non-optimized films ... |
|
| Flux Pinning Enhancement in YBa2Cu3O7-x Films for Coated Conductor Applications (Postprint) |
Feb 2012 |
25 pages |
| Authors:
C V Varanasi; P N Barnes; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
|
| It is shown that YBCO films with BaSnO3 (BSO) nano-additions, made with either a sectored target or with a premixed target using pulsed-laser deposition (PLD), have a much greater improvement in Jc at the higher fields with an H//c orientation. More than two orders of magnitude improvement in Jc was observed as compared to undoped or similarly processed Y2BaCuO5 (Y211) doped samples at magnetic fields higher than 5 T. The ... |
|
| Simulating the Mechanical Response of Titanium Alloys Through the Crystal Plasticity Finite Element Analysis of Image-Based Synthetic Microstructures |
Jan 2012 |
103 pages |
| Authors:
Josh Thomas; OHIO STATE UNIV COLUMBUS
|
| Micromechanical crystal plasticity finite element simulations of the response of synthetic titanium microstructures are carried out with the goal of quantifying the effect of microstructure on mechanical properties. Two separate materials are studied: (1) an alpha-Beta Ti-6Al-4V material and (2) a highly-textured, rolled lpha Ti-3Al-2.5V sheet material. Performing accurate finite element analyses begins with accurate image-based characterization of the morphological and crystallographic features of the materials at the microstructural scale. ... |
|
| Evaluation of Sampling and Sample Preparation Modifications for Soil Containing Metallic Residues |
Jan 2012 |
169 pages |
| Authors:
Jay L Clausen; Thomas Georgian; Julie Richardson; Anthony Bednar; Nancy Perron; Andrew Bray; Patricia Tuminello; Larry Penfold; Diane Anderson; Gordon Gooch; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH
|
| Research over the last decade has revealed that energetic constituents are released into the environment as a result of military training in extremely heterogeneous patterns. Traditional soil sampling and sample preparation methodologies are inadequate to address this level of heterogeneity. Consequently, a number of necessary changes to the accepted soil sampling and sample preparation procedures, which were adopted in a revised U.S. Environmental Protection Agency (USEPA) Method 8330B are identified. ... |
|
| Influence of Metal Ion and Polymer Core on the Melt Rheology of Metallosupramolecular Films |
Jan 2012 |
12 pages |
| Authors:
Justin R Kumpfer; Jeong J Wie; John P Swanson; Frederick L Beyer; Michael E Mackay; Stuart J Rowan; CASE WESTERN RESERVE UNIV CLEVELAND OH
|
| Detailed rheological studies of metallo-supramolecular polymer films in the melt were performed to elucidate the influence of the metal ion and polymer components on their mechanical and structural properties. 4-Oxy-2,6-bis- (10-methylbenzimidazolyl)pyridine telechelic endcapped polymers with a low Tg core, either poly(tetrahydrofuran) or poly(ethylene-co-butylene), were prepared with differing ratios of Zn2+ and Eu3+ to determine the influence of polymer chain chemistry and metal ion on the properties. Increasing the amount of ... |
|
| Mesoscale Mechanics of Reactive Materials for Enhanced Target Effects |
31 Dec 2011 |
55 pages |
| Authors:
N Durr; G Heilig; A Klomfass; M Sauer; FRAUNHOFER-INST FOR HIGH-SPEED DYNAMICS - EFRINGEN-KIRCHEN (GERMANY) ERNST-MACH-INST (EMI)
|
| The research documented in this report concerns the mechanical behavior of sintered reactive metal compositions for potential use in shells of explosive warheads. The technical goal of the research is to determine by numerical simulations which mechanical properties cubes of sintered mixtures of aluminum and tungsten would need to survive an explosive launch and fragment into small combustible particles after penetration of a thin aluminum sheet. A methodology has been ... |
|
| Magnesium Aluminum Borides as Explosive Materials |
20 Dec 2011 |
105 pages |
| Authors:
Michael L Whittaker; Raymond A Cutler; CERAMATEC INC SALT LAKE CITY UT
|
| The most common compounds formed from boron are boron carbide (B4C) and boron nitride (BN), which are generally not considered borides but which are included here since they are commercially available as high-quality powders. Borides are generally considered as compounds combining one, or more, metals with boron. Strong covalent bonding allows many of these borides to have high melting or decomposition temperatures, such that they can be used in reducing ... |
|
| Pollutant Source Tracking (PST) Technical Guidance |
01 Dec 2011 |
164 pages |
| Authors:
Meriah Arias-Thode; Stacy Curtis; Robert George; Heather Halkola; Jim Leather; Ignacio Rivera-Duarte; Dave Cotnoir; SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA
|
| The objective of this project is to accurately quantify Navy contaminant loads by identifying, reviewing, demonstrating, and validating contaminant source tracking technologies that will provide a technical framework for Navy water program managers, enabling them to: (1) attribute existing contamination loads to support compliance programs; (2) clearly understand weaknesses, as well as how thos technologies can be used to develop management decisions for compliance; (3) use the scientific approach and ... |
|
| Microstructure and Strain Rate Effects on the Mechanical Behavior of Particle Reinforced Epoxy-Based Reactive Materials |
Dec 2011 |
324 pages |
| Authors:
Bradley W White; GEORGIA INST OF TECH ATLANTA SCHOOL OF MATERIALS SCIENCE AND ENGINEERING
|
| The effects of reactive metal particles on the microstructure and mechanical properties of epoxy-based composites are investigated in this work. Particle reinforced polymer composites show promise as structural energetic materials that can provide structural strength while simultaneously being capable of releasing large amounts of chemical energy through highly exothermic reactions occurring between the particles and with the matrix. This advanced class of materials is advantageous due to the decreased amount ... |
|
| Investigation of an Electromagnetic Induction Sensor |
Dec 2011 |
143 pages |
| Authors:
Jr Scott Waymond R; GEORGIA TECH APPLIED RESEARCH CORP ATLANTA GA
|
| In recent years, advanced EMI sensors that use a broad range of frequencies long with advanced signal processing have been shown to be capable of discrimination between buried land mines and many types of buried metal clutter. For these EMI sensors to be effective, they must be able to accurately, repeatably, and quickly measure the response of a buried target. This is difficult because the sensor must operate with bandwidths ... |
|
| Exposure to Nickel, Chromium, or Cadmium Causes Distinct Changes in the Gene Expression Patterns of a Rat Liver Derived Cell Line |
16 Nov 2011 |
13 pages |
| Authors:
Matthew G Permenter; John A Lewis; David A Jackson; ARMY CENTER FOR ENVIRONMENTAL HEALTH RESEARCH FORT DETRICK MD
|
| Many heavy metals, including nickel, cadmium, and chromium are toxic industrial chemicals with an exposure. While these substances are known to produce adverse health effects leading to health problems, the detailed mechanisms remain unclear. To elucidate the processes involved in the toxicity of these metals at the molecular level and to perform a comparative analysis, H4-II-E-C3 rat liver-derived cell lines were treated with each metal and gene expression patterns were ... |
|
| Proposed Field Sampling and Sample Preparation Changes for Soils Containing Metallic Residues |
01 Nov 2011 |
22 pages |
| Authors:
Jay L Clausen; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| Study objectives were to demonstrate improved data quality for metal constituents in surface soils on military training ranges by coupling multi-increment sampling with modifications to sample preparation and analysis methods. |
|
| Modeling Turbine Blade Crack Detection in Sonic IR Imaging with a Method of Creating Flat Crack Surface in FEA (Preprint) |
Nov 2011 |
9 pages |
| Authors:
Xiaoyan Han; Ding Zhang; Golam Newaz; Lawrence D Favro; Robert L Thomas; UNIVERSAL TECHNOLOGY CORP DAYTON OH
|
| Sonic Infrared (IR) Imaging Nondestructive Evaluation (NDE) technology has shown inherent advantages for defect detection in aircraft structures. It can image a wide area within a second or two for metal material targets. Due to high stresses aircraft engine turbine blades bear during their operation, fatigue cracks can form after a number of hours of service. Sonic IR imaging shows great potential for this application. However, interaction of the sonic ... |
|
| 1,1-Diamino-2,2-Dintroethene (FOX-7) In Copper And Nickel Diamine Complexes And Copper FOX-7 |
22 Oct 2011 |
7 pages |
| Authors:
Thao T Vo; Damon A Parrish; Jean'ne M Shreeve; IDAHO UNIV MOSCOW DEPT OF CHEMISTRY
|
| 1,1-Diamino-2,2-dinitroethene (FOX-7) reacts readily with copper nitrate in an aqueous solution of potassium hydroxide to form pea green Cu(FOX)2(H2O)2 (5). FOX-7 complexes of copper and nickel supported by a variety of diamines including Cu- (en)2(FOX)2(H2O) (1), Cu(pn)2(FOX)2 (2), Cu(bipy)(FOX)2(H2O)4 (3a), Cu- (bipy)2(FOX)2(H2O)2 .5 (3b), Cu(bipy)(FOX)2(DMSO)2 2DMSO (3c), Cu- (phen)3(FOX)2(H2O)3 (4), (Ni)2(phen)6(FOX)4(NO3)3(H2O)2 (6), and Ni- (bipy)3(FOX)2(H2O)4 (7a) were obtained via metathesis reactions with potassium-FOX (KFOX). Surprisingly FOX-7, in the presence of ... |
|
| 2010 ESTCP UXO Classification Study Rougemont, NC, ESTCP MR-1034, Demonstration Data Report, Former Camp Butner, MTADS Discrimination Array (TEMTADS) Survey |
20 Oct 2011 |
56 pages |
| Authors:
Nagi Khadr; James B Kingdon; Glenn R Harbaugh; Daniel A Steinhurst; NAVAL RESEARCH LAB WASHINGTON DC
|
| A twenty-five element planar array of transient electromagnetic induction (TEM) sensors developed by the Naval Research Laboratory under SERDP and ESTCP sponsorship was deployed to the former Camp Butner, NC as part of the ESTCP UXO Classification Study in July 2010. The TEMTADS array is used in a cued interrogation mode. It is delivered by a tow vehicle to a series of GPS-flagged locations corresponding to anomalies detected during prior ... |
|
| Nanoscale Carbon in Metals for Energy Applications |
19 Oct 2011 |
28 pages |
| Authors:
David R Forrest; Lloyd Brown; Lourdes Salamanca-Riba; Jennifer Wolk; Peter Joyce; Jie Zhang; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV WEST BETHESDA MD
|
|
| MMRP Guidance Document for Soil Sampling of Energetics and Metals |
Oct 2011 |
124 pages |
| Authors:
Susan Taylor; Thomas F Jenkins; Hugh Rieck; Susan Bigl; Alan D Hewitt; Marianne E Walsh; Michael R Walsh; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| This manual gives guidance on how to collect and process soil samples to quantify explosives, propellants, and metals from nonoperational ranges under remedial investigation. This document outlines how to estimate the average concentration of energetic compounds and metals in soils and determine the error in the estimated concentration. Since this guidance is for a remedial investigation, we assume that the Site Investigation has identified areas that need further study. |
|
| Remediation of Explosives Contaminated Groundwater With Zero-Valent Iron |
Oct 2011 |
40 pages |
| Authors:
Paul Tratnyek; Richard Johnson; OREGON HEALTH AND SCIENCES UNIV PORTLAND
|
| A series of laboratory and field studies was performed to evaluate the in situ degradation of TNT and RDX using permeable reactive barriers (PRBs) made with zero-valent iron (ZVI). The disappearance of both TNT and RDX were shown to be rapid in the laboratory and ex situ field columns. Batch experiments performed with 14C-labelled TNT have showed that the products of reaction with iron metal are partly sequestered on the ... |
|
| Explosives Dissolved from Unexploded Ordnance |
Oct 2011 |
104 pages |
| Authors:
Susan Taylor; Susan Bigl; Carrie Vuyovich; Jeanne Roningen; Anna Wagner; Nancy Perron; Steven Daly; Marianne Walsh; James Hug; COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
|
| For this work we: 1) sampled soil below unexploded ordnance (UXO) found in situ and noted the conditions of the rounds, 2) conducted laboratory tests to help us estimate high explosive (HE) dissolution from different sized holes in corroded rounds, and 3) used the modeling program Hydrus-1D and weather records to predict the ownward movement of the explosives into the soil. Although most of these UXO looked highly corroded, our ... |
|
| Metal Nanoshells for Enhanced Solar-to-Fuel Photocatalytic Conversion |
20 Sep 2011 |
12 pages |
| Authors:
Tai-Chou Lee; NATIONAL CENTRAL UNIV CHUNG-LI (TAIWAN)
|
| Preparation of next-generation photocatalysts is presented. The indium content in this four-component photocatalyst was found to play a critical role. The highest hydrogen evolution rate is 970 micrometersol/h.g. The [Zn]/[Ag] also determined the utilization of visible-light region in the solar spectrum. Samples with various [Zn]/[Ag] compositions show different photocatalytic activities in full spectrum and in visible light. Secondly, it was demonstrated that at an elevated temperature, the hydrogen evolution rate ... |
|
| Verification of Use of IBHVG In Screening of High-Metal Loading Igniter Materials for Optimum Ignition of JA2 |
Sep 2011 |
28 pages |
| Authors:
Stephen L Howard; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| A smorgasbord of possible reaction pairs exists for high-metals loading igniter materials. While many of these reaction pairs initially appear to perform well when looking at a simple pressure-time history, the ignition and subsequent pressurization of the candidate propellant may not fulfill the desired metrics of improvement. The interior ballistics lumped-parameter code Interior Ballistics of High-Velocity Guns (IBHVG) has been utilized to describe simple ignition in a comparative ignition fixture. ... |
|
| Evaluation of Low Hazardous Air Pollutant Thermoset Adhesives for the Application of Rubber-to-Metal Bonding on Army Tank Pads and Road Wheels |
Sep 2011 |
50 pages |
| Authors:
Ryan D Robinson; Faye R Toulan; Christopher B Stabler; David Flanagan; Henry Feuer; Paul Touchet; John J La Scala; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| The Environmental Protection Agency is in the process of mandating Defense Land Systems and Miscellaneous Equipment and National Emission Standards for Hazardous Air Pollutants that will affect Army surface coating operations. Bonding unvulcanized rubber to a metal substrate in the production and replacement of tank treads, track pad, track shoes, and road wheels uses thermoset adhesives and primers with a high hazardous air pollutant (HAP) content. This research focused on ... |
|
| Development of Nanoporous Carbide-Derived Carbon Electrodes for High-Performance Lithium-Ion Batteries |
Sep 2011 |
93 pages |
| Authors:
Kamryn M Sakamoto; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Lithium ion batteries are the state-of-the-art power sources for portable electronic devices and, due to their superior energy and power densities, are promising candidates for the demanding energy storage applications of the U.S. Navy and other branches of the military. While graphitic carbon is currently the most common anode material in lithium ion batteries, it suffers from low specific capacity (372 mAh/g) and poor power characteristics. In contrast, amorphous carbons ... |
|
| TCAD Analysis of Heating and Maximum Current Density in Carbon Nanofiber Interconnects |
Sep 2011 |
87 pages |
| Authors:
Jason A Brunton; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| As devices shrink, the current density through interconnects increases proportionally making new materials a necessity for industry growth. Carbon nanofiber (CNF) and carbon nanotube's (CNT) potential for high current density make them a possible replacement for metal contacts. Learning the limitations of CNFs and CNTs is important if they are to be used in next-generation electronics. As current density increases, heat is generated throughout the CNF structure. This heating eventually ... |
|
| CSSC Fish Barrier Simulated Rescuer Touch Point Results, Operating Guidance, and Recommendations for Rescuer Safety |
Sep 2011 |
60 pages |
| Authors:
Michael Slater; Norbert Yankielun; John Parker; Marion J Lewandowski; COAST GUARD NEW LONDON CT RESEARCH AND DEVELOPMENT CENTER
|
| The Chicago Sanitary and Ship Canal (CSSC) has electric dispersal barriers in operation to prevent the spread of aquatic nuisance species. The experiment was to better understand what would actually occur during a rescue in the electrified waters with three barriers energized. An additional purpose was to identify any methods, devices, or operating guidance to prevent potential harm to a rescuer. Voltage measurements under controlled conditions were taken during transits ... |
|
| Wash Primer Replacement Based on the Superprimer Technology |
Sep 2011 |
98 pages |
| Authors:
William J Vanooij; Maggie Zhu; Wayne Zhang; ECOSIL TECHNOLOGIES LLC FAIRFIELD OH
|
| A replacement for the wash primer that meets the military specification DoD-P-15328D has been developed. It is water-borne, contains no hexavalent chromium, has very low VOC and contains no HAPs. It has been tested on cold-rolled steel and the aluminum alloy AA7075-T6. On both metals the proposed replacement exceeds the performance of the DoD-P-15328D primers in various tests, including SST, EIS and CCT. Adhesion to primers is also improved by ... |
|
| Low HAP/VOC Compliant Resins for Military Applications |
Sep 2011 |
55 pages |
| Authors:
ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM OFFICE (DOD) ARLINGTON VA
|
| Composite materials are used in the Department of Defense (DoD) because of their low weight and excellent properties, enabling the production of lighter weight and stronger vehicles, ships, and structures. Programs have been initiated to replace metallic components of high mobility multi-wheeled vehicles (HMMWV) and other Army vehicles and naval ships with composite parts. However, fabrication of composite materials can produce large amounts of volatile organic compound (VOC) and hazardous ... |
|
| Structural Technology Evaluation and Analysis Program (STEAP) Delivery Order 0042: Development of the Equivalent Overload Model, Demonstration of the Failure of Superposition, and Relaxation/Redistribution Measurement |
Sep 2011 |
129 pages |
| Authors:
Thomas B Mills; Kyle T Honeycutt; Scott A Prost-Domasky; Craig L Brooks; APES INC ST LOUIS MO
|
| This project has the goal of focusing on a few of the key issues and questions related to cold working of holes in aircraft grade metals: relaxation and redistribution of residual stresses, and models of crack propagation in complex residual stress fields. |
|
| Syntheses, Characterizations, and Applications of Molecular Metal Wires |
05 Aug 2011 |
|
| Authors:
Shie-Ming Peng; Chun-hsien Chen; NATIONAL TAIWAN UNIV TAIPEI
|
| This is the final report of a project on extended metal atom chains, a unique category of metal wires. Our long-term research interests focus on EMACs (Extended Metal Atom Chains), a unique category of molecular metal wires. A prototypical EMAC is a linear chain of transition metals wrapped helically by four oligo- -pyridylamido anions. Explored in this AOARD project are novel ligands utilized to synthesize EMACs which inherit interesting physical ... |
|
| Novel Antennas Based Upon Extraordinary Transmission Metamaterial Lenses |
Aug 2011 |
42 pages |
| Authors:
Mario S Ayza; UNIVERSIDAD PUBLICA DE NAVARRA PAMPLONA (SPAIN) DEPT OF ELECTRICAL ENGINEERING AND ELECTRONICS
|
| A deep analysis of bi- and plano-concave lens antennas made of stacked doubly period subwavelength hole arrays in terms of focus and angular power distribution is presented in this report. The key difference between these Left-Handed Extraordinary Transmission lenses (LHET-lenses) and the classical metallic lenses is based on the fact that contrary to the latter ones, LHETlenses work in the cut-off region of the circular waveguide formed by consecutive stacked ... |
|
| Evaluation of Metals Release from Oxidation of Fly Ash during Dredging of the Emory River, TN |
Aug 2011 |
623 pages |
| Authors:
Jeffery A Steevens; Anthony J Bednar; Mark A Chappell; Alan J Kennedy; Jennifer M Seiter; Jacob K Stanley; Daniel E Averett; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| This report describes a study examining the effects of Kingston Fossil Plant fly ash on geochemistry, water quality, and aquatic biota relevant to the Emory River in Tennessee. It focuses on the processes specific to the changes in the fly ash chemistry and potential releases as a result of a spill that occurred on December 22, 2008 and the subsequent dredging operations to remove the fly ash from the Emory ... |
|
Reports by Keyword(s)
METALS
