Graphene-boron nitride monolayer heterostructures contain adjacent electrically active and insulating regions in a continuous, single-atom thick layer. To date structures were grown at low pressure, resulting in irregular shapes and edge direction, so studies of the graphene-boron nitride interface were restricted to the microscopy of nanodomains. Here we report templated growth of single cryst...

An electron-emission theoretical model integrating the change in the grain size of nanocrystalline cubic boron nitride (c-BN) thin films was established. To understand better the essence of field emission, an accurate numerical scheme, the transfer matrix method, that can be used to compute the tunneling coefficients of the actual surface barrier, was also adopted. The present results show that...

One dimensional boron nitride nanostructures promise many interesting applications in biomedical, semiconductor and hydrogen storage and other fields. We have synthesized Boron Nitride in various nanoforms by a high temperature solid state reaction between boric acid and urea in a commercial microwave furnace. The formation of boron nitride was established from the binding energies for boron an...

This Research Article reports on the enhancement of the thermal transport properties of nanocomposite materials containing hexagonal boron nitride in poly(vinyl alcohol) through room-temperature atmospheric pressure direct-current microplasma processing. Results show that the microplasma treatment leads to exfoliation of the hexagonal boron nitride in isopropyl alcohol, reducing the number of s...

Jin S. Zhang, Jay D. Bass, Takashi Taniguchi, Alexander F. Goncharov, Yun-Yuan Chang, and Steven D. Jacobsen Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan Geophysical Laboratory, Carnegie Institution of Washington, Washington D.C. 20015, USA Department of Earth...

Phase and microstructure investigations of boron nitride thin films by spectroscopic ellipsometry in the visible and infrared spectral range" (1997). Faculty Publications from the Department of Electrical and Computer Engineering. 64. Spectroscopic ellipsometry over the spectral range from 700 to 3000 cm Ϫ1 and from 1.5 to 3.5 eV is used to simultaneously determine phase and microstructure of p...

Friction Stir Welding (FSW), being a novel process and facilitates welding various joints required for several industrial applications. It is an attractive technology for solid state material joining, contrary to conventional welding methods, having ability to produce welds with higher integrity and minimum induced distortion and residual stresses. In this paper, the operation of FSW, critical ...

Continuum based models are presented here for certain boron nitride and carbon nanostructures. In particular, certain fullerene interactions, C(60)-C(60), B(36)N(36)-B(36)N(36) and C(60)-B(36)N(36), and fullerene-nanotube oscillator interactions, C(60)-boron nitride nanotube, C(60)-carbon nanotube, B(36)N(36)-boron nitride nanotube and B(36)N(36)-carbon nanotube, are studied using the Lennard-...

Direct machining steel parts at a hardened state, known as hard turning, offers a number of potential benefits over traditional grinding in some applications. In addition, hard turning has several unique process characteristics, e.g., segmented chip formation and microstructural alterations at the machined surfaces, fundamentally different from conventional turning. Hard turning is, therefore, ...