We performed integrated modelling of the chemical pathways formation for boron nitride nanotube (BNNT) precursors during high-temperature synthesis in a B/N2 mixture. Modelling includes quantum chemistry, quantum-classical molecular dynamics, thermodynamic, and kinetic approaches. It is shown that BN compounds are formed interaction N2 molecules with small clusters (N2 molecule fixation) rather...

Boron nitride nanotubes (BNNTs) are a very promising reinforcement for future high-performance composites because of their excellent thermo-mechanical properties. To take full advantage BNNTs in composite materials, it is necessary to have comprehensive understanding the wetting characteristics various resins. Molecular dynamics (MD) simulations provide an accurate and efficient approach establ...

The controlled synthesis and growth of carbon nanotubes (CNTs) has been a long standing challenge in the fabrication of carbon based materials for electronic applications. Due to the sensitivity to small changes in their structure, the successful integration of CNTs on electronic devices is conditioned to the preservation of the graphitic network of single and multiwalled nanotubes from externa...

A variable pressure (up to 10 atm) powder/gas/liquid injection inductively coupled plasma system has been developed and used to produce high-quality boron nitride nanotubes (BNNTs) at continuous production rates of 35 g/h. Under suitable conditions, collapsed BN nanotubes (i.e., nanoribbons), and closed shell BN capsules (i.e., nanococoons) are also obtained. The process is adaptable to a large...

Surface phonon-polariton (SPhP) modes exist under optical excitation of polar materials, and are accessible using scattering type near-field optical microscopy (s-SNOM). Hexagonal boron nitride (hBN) and boron nitride nanotubes (BNNTs) can exhibit such modes under IR excitation, in spectral regions where the permittivity is negative. Herein we present pump-probe continuous wave (CW) sSNOM a nov...

Adding nanofillers to epoxy resin matrices is a common approach achieve their multi-function, among which boron nitride nanotubes (BNNTs) with one-dimensional nanostructures have attracted much attention because of ultra-high thermal conductivity, wide energy level band gap, high aspect ratio and mechanical strength. Yet, the strong π-π non-covalent bonding lip-lip interactions make BNNTs prone...

In this study interaction of phenothiazine sulfur dye with (5, 5) armchair open-end boron nitride nanotubes (BNNTs) in interaction (with a length of 7 Å) was investigated. The impacts of the estereoelectronic effect associated with donor-acceptor electron delocalizations, dipole-dipole interactions and total steric exchange energies on the structural and electronic properties and reactivity of ...

Submitted by drupal on Wed, 10/23/2013 18:04 Firm: Applied Material Systems Engineering, Inc. (AMSENG) [2] Award Solicitation: NASA SBIR 2010 Phase I Solicitation [3] Award ID: SBIR_10_P1_104053 Award Topic: Power Management and Storage [4] Award Dollars: 100 000.00 Award Lead Center: Glenn Research Center [5] Proposal Number: S3.05-9947 Proposal Title: Evaluation of Synthesis & Processing Rout...