NIST – Page 2 – TechConnect Briefs

Hydrogen-Steel Compatibility Research at NIST-Boulder

Siewert T.A., Slifka A.J., McColskey J.D., Lasseigne A.N., Nanninga N.E., Levi Y., NIST, US

The National Institute of Standards and Technology (NIST) is establishing a new national test facility in Boulder, Colorado to evaluate the mechanical properties of materials proposed to store, transport, and distribute hydrogen fuels. Many of [...]

Hydrogen-Steel Compatibility Research at NIST-Boulder

Siewert T.A., Slifka A.J., McColskey J.D., Lasseigne A.N., Nanninga N.E., Levi Y., NIST, US

The National Institute of Standards and Technology (NIST) is establishing a new national test facility in Boulder, Colorado to evaluate the mechanical properties of materials proposed to store, transport, and distribute hydrogen fuels. Many of [...]

Degradation and Nanoparticle Release of Epoxy/Nanosilica Composites Exposed to Solar UV Radiation

Pellegrin B., Nguyen T., Mermet L., Shapiro A., Gu X., Chin J., NIST, US

Nanoparticles are increasingly incorporated in polymers to enhance multifunctional properties. However, polymers are prone to undergo photodegradation under UV exposure, resulting in a liberation of nanoparticles from the polymer nanocomposites during their life cycle. The [...]

Network Aggregation of CNT at the Surface of Epoxy/MWCNT Composite Exposed to UV Radiation

Nguyen T., Pellegrin B., Mermet L., Shapiro A., Gu X., Chin J., NIST, US

CNTs are increasingly incorporated in polymers to enhance their mechanical and other properties. However, organic polymers are prone to degrade under UV radiation. Therefore, CNTs in a polymer nanocomposite will eventually be released into the [...]

Guided Self-Assembly of Block-Copolymer Nanostructures

Karim A., Berry B.C., Kim H-C, Kim S., Zhang X., Bosse A.W., Lacerda S.H., Yager K.G., Jones R.L., Douglas J.F., Briber R.M., Kim H-C, Kim S., NIST, US

A primary limitation of block copolymer films as templates for next generation electronic or data storage devices is the prohibitively long times required for thermally driven self-assembly and defect annihilation and long range order development. [...]

Polyurethane Nanocomposites Containing NCO-Functionalized Carbon Nanotubes and NCO-Functionalized Nanoclays

Nguyen T., Granier A., Pellegrin B., Celina M., NIST, US

Mechanical property, UV resistance, and oxygen permeation performance of automobile polyurethane (PU) coating containing NCO-functionalized (MWCNTs and nanoclays) have been measured. A novel method was used to functionalize CNTs and nanoclays using a diisocyanate in [...]

Separation Mechanisms for Nanoscale Spheres and Rods in Field-Flow Fractionation (FFF)

Phelan Jr. F.R., Bauer B.J., NIST, US

A Brownian dynamics simulation for modeling the separation of spheres and rodlike particles in field-flow fractionation (FFF) is developed. Modeling of particle elution for spheres from (10 to 1000) nm was examined. The simulation captures [...]

Nano-Lithography in Ultra-High Vacuum (UHV) for Real World Applications

Gilsinn J., Zhou H., Damazo B., Fu J., Silver R., NIST, US

As nano-lithography technology improves, more companies and research groups have the capability to create nano-scale structures. Scanning tunneling microscopes (STMs) are commonly used to create these structures and evaluate them afterward. One difficulty is that [...]

Metrology Development for the Nanoelectronics Industry at the National Institute of Standards and Technology

Dagata J.A., Richter C.A., Silver R.M., Vogel E., Martinez de Pinillos J.V., NIST, US

The National Institute of Standards and Technology has provided and continues to provide critical metrology development for the semiconductor manufacturing industry as it moves from the microelectronic era into the nanoelectronic era. This presentation will [...]

Flow Simulation of a Microfluidic Analog of the Four-Roll Mill

Phelan_Jr. F.R., Hudson S.D., NIST, US

The fluid dynamics of geometries for liquid state materials characterization in microfluidic devices are investigated. A pressure driven device using microchannels is sought that has an adjustable flow type, approximating the function of the four-roll [...]