archive-org.com » ORG » T » TECHLINKCENTER.ORG

Total: 656

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • KDNP Drop-In Lead Styphnate Replacement for Ammunition and Cartridge Actuated Devices/Propellant Actuated Devices (CAD/PAD) | TechLink
    ammunition predominately use lead styphnate based formulations that pose a long term hazard to the environment primer manufacturers and the operator of the weapon since airborne vaporized lead results from each successfully fired cartridge Nearly 12 tons of lead is consumed each year by the US military for small caliber ammunition alone The vast majority of primer use by US military and domestic police forces 95 is for training purposes resulting in unsafe conditions at training ranges due lead and other heavy metal residues As a result the EPA and the FBI have designed lead as a primer ingredient that needs to be replaced and the DoD is under an Executive Order to reduce or eliminate hazardous substances wherever feasible The Naval Surface Warefare Center Indian Head Division NSWC IH has demonstrate KDNP as a drop in replacement for lead styphnate in the primers used in ammunition and cartridge actuated devices The Al Bi2O3 MIC composition provides comparable or superior performance to current military lead styphnate formulations such as FA 956 No 41 primer for all 5 56mm 7 62mm and 50 cal ammunition and 5086 PVU 1 A primer for CAD PAD applications Benefits Drop In Replacement Offers significant environmental improvements over lead styphnate during manufacture use and disposal Military Grade Qualified for military use based on chemical physical safety and performance characteristics Broad Applications Potential for use in small and medium caliber ammunition up to 40mm a variety of CAD PAD more than 3 100 different devices in use by the US Navy and detonators The Opportunity Qualified for military use as a primary explosive in weapons development per NAVSEAINST 8020 5C Issued US Patent 8 062 443 and additional pending IP available for license US 8 062 443 Potential for collaboration with NSWC Indian Head researchers Contacts

    Original URL path: http://techlinkcenter.org/summaries/kdnp-drop-lead-styphnate-replacement-ammunition-and-cartridge-actuated-devicespropellant (2016-02-09)
    Open archived version from archive

  • Quickly Assembled Modular Barrier Fencing | TechLink
    commercially applying the technology on behalf of federal and public interests Image Right The Technology The Modular Barrier System effectively satisfies all of these criteria with a cost effective solid barrier system that is adaptable depending on the application required The barrier consists of solid panel sections joined by simple connector hardware The back of each panel houses a rod with eye holes to which support rods can be attached The front of the panels are featureless to deter climbing Single panels have hooked ends to mesh with all successive units creating a straight and strong interface When joined by connection rods two single units become one freestanding barrier The Modular Barrier System can be erected and repaired without surveying and without special knowledge or tools It can be readily disassembled stored and moved as needed Multiple deterrents can be installed on top of the barrier and trenching or adding concrete or soil creates a barrier durable to attack or vehicular penetration Benefits Effective security barrier designs must be able to meet the following criteria Structural robustness to prevent degradation due to a variety of sources e g attempts to scale the barrier ramming by vehicles cutting hammering and efforts

    Original URL path: http://techlinkcenter.org/summaries/quickly-assembled-modular-barrier-fencing (2016-02-09)
    Open archived version from archive

  • Portable Griddle for Use with Energy-Dense Liquid Fuels | TechLink
    8 or diesel Its unique design allows the apparatus to provide an evenly distributed surface of heat over a variety of temperature settings The griddle provides effective cooking in environments where high meal throughput is desired Benefits Increased safety JP 8 and diesel are less volatile and easier to handle than conventional gas fuels Convenience Liquid fuel is readily available and common to many portable generators vehicles and other equipment thus reducing the need for multiple fuel sources Scalable design Larger griddle surfaces are expected to be even more fuel efficient Proven effectiveness The Natick apparatus has been used to cook a full menu containing steaks and hamburgers feeding 500 military personnel in 2 hours The Opportunity Liquid fuels such as diesel and JP 8 contain a high amount of energy per unit of volume when compared to conventional gas fuels Although these fuels are less volatile than gas they ve provided challenges in some applications due to the difficulties in managing the intensity of heat Although effective for tasks such as boiling water previous liquid fuel burners could not offer an even distribution of heat over a variety of temperature settings required for larger scale cooking applications The Natick

    Original URL path: http://techlinkcenter.org/summaries/portable-griddle-use-energy-dense-liquid-fuels (2016-02-09)
    Open archived version from archive

  • Magnetic SERS Substrates – Enhanced Reproducibility and Lowered Detection Limit | TechLink
    overcome these problems and at the same time provides for lower detection limits Image Right The Technology SERS active metal colloids are immobilized onto functionalized magnetic particles to form SERS active capture matrices ACM An appropriate reagent is introduced to form a self assembled monolayer SAM in the above example the reagent is RSH onto the ACMs The resultant SAM ACM is used to extract analytes A magnet is used to concentrate the microparticles onto the side of the sample vial allowing analyte detection by SERS The SAM itself exhibits a SERS spectrum which can be used advantageously for normalization purposes The innovation enables the sensitivity of SERS to be more fully utilized for detection of analytes Benefits Reproducible The normalization procedure which leverages a SAM peak as an internal standard increases the precision of the analyte signal by more than 1 order of magnitude Low detection limit Magnetic particles are a common enrichment tool in the biosciences Inventors report the detection limit for naphthalene with PCTP gold colloid on magnetic particles to be 0 3μg mL 1 compared with 1 5 μg mL 1 using PCTP gold on glass the more traditional technique Conducive to manufacturing Magnetic microparticles with various functional groups including amines and carboxylic acids are readily available A broad array of off the shelf SAMs have been demonstrated to be useful for the detection of analytes of interest including explosives narcotics and chemical warfare agents Colloids have been used to probe the SERS phenomenon for better than 20 years The Opportunity Status Results reported in Anal Chem 77 2005 1031 1037 Patent pending invention team has a sizable related suite of patents in substrates and spectrometers Inventors may be available for consultation and collaboration Contacts Joan Wu Singel CLP Senior Technology Manager Chief Technology Scout Montana

    Original URL path: http://techlinkcenter.org/summaries/magnetic-sers-substrates-%E2%80%93-enhanced-reproducibility-and-lowered-detection-limit (2016-02-09)
    Open archived version from archive

  • Variable Height Bulkhead | TechLink
    filed Jan 02 2008 Image Right The Technology Waterfront properties and roadways are often protected by permanent bulkheads It is a challenge to build them tall enough to be effective but low enough to preserve high value views Some of these bulkheads are equipped with pumps to deal with storm surge and wave induced overtopping This is a costly and maintenanceintensive solution that is particularly ineffective for long stretches of bulkheads as may be needed for roadways and marinas The Opportunity The USACE team has devised a floating solution that adjusts vertically using only the mechanism of a rising water level It does not require operator attention pumping or other mechanical controls It can be retrofitted to any existing bulkheads that are permanently located and that have some depth of water next to them A floating internal wall is constructed in between the existing barrier and a second barrier wall When a surge occurs the floating wall rises on the water As the water recedes the floating wall drops back between the two external walls and a cover cap falls back in place on the top ledge Design attention has been given to preventing the inner wall from hanging up

    Original URL path: http://techlinkcenter.org/summaries/variable-height-bulkhead (2016-02-09)
    Open archived version from archive

  • Advanced Battery Technologies | TechLink
    charge transfer resistance in high burst migration of ions in charge discharge cycles such as when electric vehicles accelerate or brake Many applications reduced prototyped TRL 6 Fully functioning battery prototypes using coin and pouch cell formats High Voltage Safer Lithium Carbon Fluoride Battery Safer method of manufacturing and higher running voltage and smaller voltage delay as compared to Li CFx batteries on the market today Eliminates the use of fluorine gas and hydrofluoric acid TRL 4 Fully functioning prototype cell Ultra fast Bi directional Solid State Circuit Breaker Senses current and provides over current protection Solid state device with high speed fault protection in the microsecond range Small light and rugged Geared toward electric vehicle applications TRL 4 Functional engineering prototype Improved Electrolytes for Lithium Air Batteries Novel electrolytes and electrolyte solvents to significantly improve energy storage capacity and discharge rate capabilities of Li Air cells using organic electrolytes Uses commonly available materials TRL 4 Functional laboratory cells Improving Capacity Retention and Temperature Range of Li ion Batteries Improves cycle life storage life and charge retention especially at elevated temperatures up to 75OC Compatible with current electrolyte manufacturing processes TRL 5 Fully functioning battery prototypes Reducing Irreversible Capacity Loss in Li ion Batteries Reduced first cycle irreversible loss of charge capacity by about one half compared to existing Li ion cells Method is adaptable for mass production TRL 5 Fully functioning battery prototypes Reducing Irreversible Capacity Loss in Li ion Batteries Reduced first cycle irreversible loss of charge capacity by about one half compared to existing Li ion cells Method is adaptable for mass production TRL 5 Fully functioning battery prototypes Preparing a Unique Lithium Salt for an Improved Electrolyte for Li ion Batteries Synthesis process for a new salt alternative to LiPF6 with better performance characteristics in cold and warm environments Higher safety margins and a simple process TRL 5 Functioning battery prototypes created using this synthesis process Electrolyte Formulations for Wide Temperature Li ion Batteries Increases operating temperature upper limit by 25 from 60OC to 75OC and beyond with minimal performance loss Less toxic material is compatible with existing manufacturing processes and is less expensive than current state of the art TRL 6 Fully functioning cell prototypes High Capacity Metal Air Battery Molybdenum Air primary battery with 2 5 times greater energy capacity than competing zinc air battery Enables longer safer operation and a longer shelf life using commonly available materials TRL 4 Fully functioning prototypes in various small cell formats Improving Low Temperature Operability of Li uon Batteries New electrolyte salt for secondary batteries that expands operational temperature range down to 40OC TRL 5 Fully functioning laboratory scale prototypes made using novel salt Producing a New Class of Composite Cathodes for Li ion Batteries Enables a new family of cathodes for less expensive safer and more environmentally benign secondary batteries Performance comparable to more expensive materials TRL 5 Fully functioning laboratory scale prototypes featuring cathodes made from ARL process Improvement Through Protection Enabling More Powerful Lithium

    Original URL path: http://techlinkcenter.org/summaries/advanced-battery-technologies (2016-02-09)
    Open archived version from archive

  • High Fidelity Composition C-4 Explosive Simulant | TechLink
    multiple simulants in order to conduct training and detection exercises The US Navy has developed an inert simulant material that replicates the full spectrum of C 4 characteristics in a non explosive form Visual Matches the visual texture and white off white color of C 4 Rheological Exhibits same pliability plasticity and strand formation of C 4 Density 1 62 g cm3 for simulant vs 1 64 g cm3 for actual C 4 Detection Same trace and K 9 detection characteristics as C 4 Effective Atomic Number Zeff of simulant matches that of C 4 so the training aid appears the same as C 4 on X ray imagery Fuel Behavior Flame test yields results similar to C 4 In addition to materials to mimic the look and feel of real C 4 the simulant developed by the US Navy includes small levels of RDX and ICAO taggant so electronic detectors and canines both detect the training aid as actual C 4 The simulant material has proven shelf stable and durable in heat cold and humidity and is easy to manufacture The Navy s product is in use within the US Department of Defense as a training aid Benefits High Fidelity Realistically mimics the full spectrum of C 4 characteristics from look and feel to electronic K 9 detection and flame test results Easy to Manufacture All components except RDX are readily commercially available and the manufacturing process requires only basic equipment Inert Even though the simulant contains RDX and burns in a manner similar to C 4 it will not explode and thus is suitable for the full spectrum training needs of civilian and military cargo screeners explosive ordnance disposal and security professionals The Opportunity Issued US Patent 8 114 230 is available for license Potential for collaboration with

    Original URL path: http://techlinkcenter.org/summaries/high-fidelity-composition-c-4-explosive-simulant (2016-02-09)
    Open archived version from archive

  • Centrifugal Casting Improved Aluminum Engine Cylinders | TechLink
    with better physical characteristics longer life and improved performance The centrifugal casting technique incorporates silicon monoxide SiO into molten aluminum alloy to create a harder inner surface Silicon monoxide is considerably harder than aluminum and the aluminum alloys typically used in engine cylinders It also has a lower specific gravity than liquid aluminum melts at a much higher temperature than aluminum and does not dissolve in or react with aluminum Because of these properties SiO remains solid and moves to the inner surface when injected into molten aluminum in a centrifugal casting system The result is a 1 5mm zone where the SiO is concentrated with aluminum aluminum alloy The presence of the SiO increases wear resistance but the mixing with aluminum helps overcome strength losses inherent in other techniques that insert harder materials into aluminum Benefits High Strength Silicon monoxide has a hardness similar to silicon 7 on the Moh s scale compared to a 2 5 3 Moh s hardness measurement for aluminum Economical Centrifugal casting is an inexpensive technique and silicon monoxide is a commercially available material Hardness and Strength Silicon monoxide provides wear improving hardness but losses in strength are largely mitigated by surrounding each silicon

    Original URL path: http://techlinkcenter.org/summaries/centrifugal-casting-improved-aluminum-engine-cylinders (2016-02-09)
    Open archived version from archive



  •