Nanoenergetics Workshop Rutgers University, 28 February 2008...
Transcript of Nanoenergetics Workshop Rutgers University, 28 February 2008...
NanoenergeticsNanoenergetics WorkshopWorkshopRutgers University, 28 February 2008Rutgers University, 28 February 2008
Presented by:Presented by:Paul RednerPaul RednerChemical EngineerChemical EngineerRDECOMRDECOM--ARDECARDEC973973--724724--97949794
How Can Nanotechnology How Can Nanotechnology Benefit the Army?Benefit the Army?
• Novel functionality enabling capabilities in survivability, lethality, sustainability not previously accessible by system designers/planners
• Nano-engineered materials with better strength-to-mass ratio for structural applications
• Nanostructured propellants/explosives for improved and controlled energy release rate for energetics
RDECOM as an Enterprise
“Winning at New Products” & “Product Leadership” by Robert Cooper
Innovative business models
Linked to Consortia
ARDECARDEC’’ss Nanopowder Processing Nanopowder Processing FacilityFacility
• The only facility in the DoD able to safely produce, prototype and manufacture pilot-scale quantities of nano enhanced structural components and energetic formulations.
• Strong partnerships with industry, academia and OGAs already formed.
• Adding capability will position ARDEC as the provider for production-scale quantities of the most promising metals and ceramics for military and dual-use applications
• Disruptive Technology• Prevention of Single Point Failures
UNCLASSIFIED
As of 13 Dec 06
NanomaterialsNanomaterials Technology CenterTechnology Center
Current/Future Customer Base:• Hardened Combined Effects Warheads ATO• Novel Energetics ATO• High-Powered Microwave ATO• Standoff Mine/IED Defeat ATO• STAR ATO• Tunable Pyrotechnics ATO• EAPS ATO• OGAs and Industry• PEO AMMO/PMs
Highlights:-ARDEC nano Aluminum performed equal to a commercial
powder for the green primer application. A through qualification is in progress at SDSM&T.
-ARDEC nano Aluminum is being tested for the LEI application. The results look very promising.
-Excellent initial results on ARDEC's efforts to develop alternate materials/technology for M211 flares/counter-measures (Nano iron and other materials)
-Installed second nanopowder fabrication system for ceramic nanopowders for survivability enhancement (armor) and other applications
-Nano B4C powder supplied to MIT (for Soldiers Nanotechnology Program) considered one of the best they have received and are now looking forSiN
-Installed FESEM and LVEM-Establishing CRADA with BASF and others-Provide nanopowder samples to OGAs and National Labs
Overview:Purpose: Develop pilot-scale quantities of functional nano and nanostructuredmaterials.to provide enhanced lethality and survivability to the Warfighter. Full characterization of these materials.Product:Advanced material solutions. These materials are defined as either nanophase or nanostructured materials that have basic characteristics of strength, reactivity, and insensitivity significantly enhanced beyond that of micron-sized materials. These attributes are tunable.Payoff:More powerful, IM-compliant explosives and propellants with tailored propertiesNovel pyrotechnicsSuperior warhead and penetrator materialsLightweight, multifunctional structural composites for armorNanomaterials for energy, sensing, photonics, and functional coating
Nano Al Nano B4C
Sensitivity Issues
• High sensitivity to both ESD and friction• Coating must be fully be applied to all
surfaces• One uncoated particle is all it takes to
sensitize a sample.• Must understand the relationship between
level of sensitivity required and application that the material is being tailored for.
Processing/Handling Issues
• Separations– From impurities– From solvents
• Coating– Nanomaterials tend to agglomerate– High surface area makes a relatively simple
process hard to accomplish• Storage/Aging
– Humidity – Solvents– Components stored separately vs. mixed
Scalability/Reproducibility Issues
• Dispersion of materials– Useful intermediate
• Particle size distribution of raw materials– Variability among different producers– Tunability is dependent on “accuracy” of the PSD of
the material– Large amount of time can be consumed on tightening
the distribution• Lab-to-fab is a HUGE step
– “Valley of Death” has to be crossed by many processes due to movement from small, controlled process into larger process
– Can we expect the same results as we scale up?– If not, what can we do to correct that?
Health Concerns
• Debate for this subject is escalating• Much is still unknown about the effects
(long- and short-term) of nanomaterials in general
• Concerns are legitimate, however:• How do we best cooperate with those who
have a legitimate approach to this problem?• How do we allay the fears of those who
have already written nanotech off as a threat?
Standardize
• Standardization of Characterization– Develop standard suite to quantify sensitivity and
performance– Collect info on all current characterization methods
and rate their applicability to characterize certain performance standards
– Round-robin of materials– Relate performance and sensitivity data to material
characteristics• There is currently no “right” way to evaluate
materials• Apply to sensitivity, performance and aging• Can we run all relevant tests at one facility?
Make the Materials Useful
• Establish formal partnerships to address key processing issues.
• Particle size– Processing parameters– Separation techniques
• “Goodness of mix”– Combine materials processing with coating and
dispersion techniques; evaluate– Mini-TSE jointly designed by Stevens Tech– Better understanding of surface chemistry
• Maintain nanostructure in components– Spark plasma sintering at ARDEC
• Modeling and Simulation
Address all Parts of the Value Chain
• Must provide the world with a better understanding of nanoscience and technology
• Establishing prototyping capabilities for transition into DoD systems
• Develop manufacturing science necessary for transition into Industrial Base
• Better connections between academia and PEO requirements
Reality
• Must think “dual-use” applications• MUST lower cost through process
optimization and scale-up.• Establish CRADAs to make technology
transfer smoother so we can get new materials to the Warfighter quickly
• May have to accept trade-offs as we move to a larger scale if we plan to insert nanotech into the mainstream.
Acknowledgements
• Deepak Kapoor• Darold Martin• Dr. Moon Chung• Mike Natalicchio• Rajen Patel• Gartung Cheng• Neha Mehta• Ted Dolch• Steven Nicolich• The Gangopadhyays• The Team at Missouri• Dr. Dilhan Kalyon
• Dr. Edward Dreizin• The Team at NJIT• Dr. Jan Puszynski• The Team at SDSMT• Mark Mezger• John Theis• Mike Los• Dan Tolliver• Mike Wrazen• Dr. Chris Haines• Rao Surapaneni