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 ...

Electro-thermo-elastic stress analysis of piezoelectric polymeric thick-walled cylinder reinforced by boronnitride nanotubes (BNNTs) subjected to electro-thermo-mechanical fields is presented in this article. The electro-thermo-elastic properties of piezoelectric fiber reinforced composite (PEFRC) was studied by a modified XY micromechanical model capable of exhibiting full coupling relati...

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...

Boron nitride nanotubes (BNNTs) have been increasingly investigated for use in a wide range of applications due to their unique physicochemical properties including high hydrophobicity, heat and electrical insulation, resistance to oxidation, and hydrogen storage capacity. They are also valued for their possible medical and biomedical applications including drug delivery, use in biomaterials, a...

The structure and the electronic properties of single-walled zigzag BN and B3C2N3 nanotubes (n, 0; n=4–10) were investigated using first-principles calculations based on a density functional theory. A plane–wave basis set with periodic boundary conditions in conjunction with Vanderbilt ultrasoft pseudo-potential was employed. The energy gap of ZB3C<su...